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''Screamers'' is a 1995 SciFiHorror film based off of the Creator/PhilipKDick story "Second Variety".

The film is set on the planet [[NumberedHomeworld Sirius 6B]] in the year 2078. Sirius 6B was the source of Berynium, a mineral that solved the energy crisis on Earth, but which produced radioactive waste as a byproduct, contaminating the planet and leading to a war between the New Economic Block, and their former employees The Alliance. While on Earth there was a tense peace between the NEB and Alliance, on Sirius 6B, the war went nuclear. Eventually, the Alliance introduced "screamers", a series of subterranean killing machines, which replicate themselves ad infinitum in an automated factory. The war eventually ruined the planet, leaving only a handful of Alliance and NEB strongholds intact. As it turns out, Earth had long since abandoned Sirius 6B, with the soldiers fighting for control of a ruined planet.

As Colonel Hendricksson, the Alliance's leader on Sirius [=6B=], heads out to discuss a peace treaty with the NEB General, it is revealed that the screamers have changed; building newer models. They can pass for human, and soon, no one is safe.

A direct-to-video sequel, ''Screamers: The Hunting'', released in 2009 features a group of Alliance Marines sent from Earth to Sirius [=6B=] to investigate a distress signal. It had been over a decade since last contact from the planet, and hey, the screamers thought to be dormant. What could possibly go wrong?

[[ScreamerPrank Not to be confused with the obnoxious]] JumpScare {{Shock Site}}s you see floating around the internet as SchmuckBait.
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!!Tropes:

* AdaptationDistillation: The original short story takes place on a [[ApocalypseHow post-apocalyptic earth]] with an [[WorldWarIII escalated cold war]] being the backstory. The movie replaces this with a colony world run by {{Corrupt Corporate Executive}}s. The story itself is largely unchanged. Even the endings have similarities;
** In "Second Variety", [[spoiler: it's a BittersweetEnding; the "claws", having [[MechanicalEvolution evolved]] enough that TheyLookLikeUsNow, manage to smuggle one of their number onto a space transport so they can wipe out what's left of humanity - the catch is that part of what made them convincing was that they were capable of [[ApeShallNeverKillApe killing other claws]], which leaves the protagonist grimly satisfied; humanity is finished, but the screamers will kill themselves off in the same manner, as they are NotSoDifferent.]]
** In ''Screamers'', [[spoiler:it's ZigZagged. The Type V screamers have evolved so that they can "smile, cry, bleed, fuck" - which enables the a Type V-Jessica to come within moments of hijacking the space transport to Earth. However, Jessica has become human enough to not want to kill humans anymore, and sacrifices herself to save Hendrickson from one of her duplicates. Averted in that it turns out the ''teddy bears'' carried by Type III's are ''also'' screamers, and Hendricksson not only brought one onto the transport but ''took his Tab off...'']]
* AdaptationExpansion: a lot more scenes and characters are added.
* AIIsACrapshoot: The Screamers were designed to kill humans in the first place, but they weren't supposed to attack Alliance troops, or to develop new forms that resembled humans.
* AnArmAndALeg: The enemy soldier sent to deliver the truce gets his hand severed, still holding the canister with the peace offering. The next Screamer slices his foot off, leaving him on the ground and vulnerable to the rest. Even the hardened soldiers watching from the bunker are squicked out.
* ArchaicWeaponForAnAdvancedAge: The Autonomous Mobile Sword (aka Screamer) kills with an automated buzzsaw rather than guns or explosives. Even the human models seem to prefer hand-to-hand methods for killing.
* ArtisticLicenseNuclearPhysics: This little gem - "Cubic tons of radiation."
* BecomingTheMask: [[spoiler: Jessica is a screamer, but she defends Hendricksson from ''another'' Jessica, to allow him to escape to Earth]].
* BBCQuarry: Albeit in Canada. There's also the requisite {{Abandoned Warehouse}}s and refineries you find in any low budget sci-fi production.
* CatchPhrase: Type III's repeat a single phrase because "they can't think of anything better to say."
* CatScare: There's speculation that the message cylinder is a bomb, so Chuck jumps when the cylinder shoots out the NEB truce offering. Hendricksson finds that funny, only to get a nasty shock later on when he picks up a rock and it turns out to be an insect. Then later a rat drops on his shoulder while he's fleeing the David units in the darkened command centre.
* ColdEquation: There's an escape rocket for the Alliance commander, but only seating and life support for one. [[spoiler:Hendricksson insists that Jessica must go, but she refuses. Then a second Jessica appears and he realises why she's refusing.]]
* CowTools: The NEB command centre has the requisite [[Film/AirplaneIITheSequel thing with lights that go back and forth]]. Until the BigBlackout, that is.
* CrackingUp: Becker cracks his neck. [[spoiler:Later when Chuck is revealed as a robot too, he does the same neck crack.]]
* CreepyChild: The "Can I come with you?" boy (called David) who turns out to be a KillerRobot, after this fact is revealed.
* {{Cyborg}}: Type V's. [[spoiler:Jessica turns out to be one of the last models, designed to have both biological and mechanical components. It's to the point that she's as empathetic as a human being and saves the hero from another copy of her line.]]
* DangerTakesABackseat: [[spoiler:The film ends with a shot of a teddy bear in the back of the one-man spacecraft used by the protagonist to escape the planet. The teddy bear is the type previously seen carried by the CreepyChild KillerRobot. Just before the movie ends we see Hendricksson rip off his Tab in disgust and fling it away, landing next to the teddy bear, which starts to move of its own accord.]]
* DarknessEqualsDeath: After Romo [[SoMuchForStealth blows up a reptile Screamer]] in the command center, the lights suddenly go out and...
-->''"Can I come with you?"''
* DeadAllAlong:
** [[spoiler: The protagonists receive a VR communique from Secretary Green back on Earth, who advises them not to accept the peace offering from the NEB forces because it might jeopardize peace negotiations on Earth. Then Ace, the SoleSurvivor of a disguised troop transport sending forces to Triton, reveals that Secretary Green was arrested and executed by the Alliance ''two years ago''.]]
** [[spoiler:Chuck has been killed and his face transplanted onto a Type V Screamer. Given that he mocks Hendricksson with things he said at the start of the movie, this apparently happened a while back. He also brags of killing the NEB general who sent the peace treaty offer, so for all we know the whole thing may have been a ruse to get Hendricksson out of the bunker so Screamer Chuck could subvert the defenses.]]
* DeathFromAbove: The New Economic Block's [[NoKillLikeOverkill response to the workers refusing to mine berynium.]]
* DeathWorld: The colony world Sirius 6B has become a wasteland due to an apocalyptic war between two different factions who've worn each other down to a few isolated and undersupplied forces holed up in bunkers. Near the end they release armies of self-evolving killer robots which kill indiscriminately, making the entire planet pretty much uninhabitable. Even venturing outside the few remaining bunkers is viewed as a SuicideMission.
* DeliberatelyCuteChild: The Type III is designed to play on a soldier's sympathy, so he'll take it into a sealed bunker.
* DesignatedGirlFight: [[spoiler: Between two of the same woman no less.]]
* {{Detournement}}: On entering the NEB command bunker, there's a giant travel poster urging tourists to ''Rediscover Paradise on Sirius 6B'', long after it's become a CrapsackWorld.
* DiabolusExMachina: Mostly everyone dies. [[spoiler:And the teddy bear is a screamer.]] Though if one is familiar with the short story [[spoiler: in the scene where "David" screamers pour out of the bunker, the teddy bears moved by themselves but got blown to bits before they could get to the main protagonists]], the twist does not come as a surprise. And the ending of the short story is even darker.
* DudeNotFunny: Hendricksson's reaction to Ace saying, "Can I come with you?"
* EmergingFromTheShadows: Just as he's about to use the escape rocket to get off the planet, Colonel Hendricksson is knocked down and his weapon taken by one of the [[TheyLookLikeUsNow human Screamers]], who then steps out of a dark to reveal [[spoiler:he's Hendricksson's NumberTwo, who should have been killed by the Screamers when they swarmed the Alliance base. Turns out the real NumberTwo was [[KillAndReplace killed and replaced]] by the Screamer before the events of the movie even started.]]
* TheEndOrIsIt: [[spoiler:The last survivor escapes the planet after a number of horrifying revelations (and gruesome deaths), yanks off his Tab and falls asleep, safe at last... turns out, the teddy bear he kept as a souvenir is also a Screamer.]]
* EverybodySmokes: Anti-radiation medication is delivered via red-colored cigarettes. Thus, lots of people smoke.
* EvilOverlooker: the cover of ''The Hunting''.
* FeetFirstIntroduction: The NEB soldier approaching the Alliance base. [[AnArmAndALeg He doesn't keep his feet for long.]]
* FiveSecondForeshadowing:
** As the sniper scans the two approaching soldiers and David, all three show as ARMED even though David is not carrying a weapon. [[spoiler:Also counts as foreshadowing -- not only is David a weapon, he's carrying his teddy bear which is also a weapon.]]
** [[spoiler:A wounded Becker cries "Help me, help me!" just like the Type II he discussed earlier. Joe realises what's going to happen a moment before Becker crushes the life out of him.]]
* ForeverWar: The war has been going on for ten years. When the N.E.B forces on Sirius 6B send a peace offering, the Alliance soldiers are told by Secretary Green not to acknowledge it as this could upset crucial peace negotiations with the N.E.B on Earth, as a safe form of berynium has just been discovered on Triton IV. Then it turns out the message from Secretary Green was faked and a new battlefront is being opened up on Triton IV as well. The Alliance is keeping them supplied because it can't just abandon Sirius 6B for propaganda reasons, but [[YouKnowTooMuch can't allow the troops to return home either]].
* GiveMeASword: Or in this case, a nuclear-tipped rifle grenade.
* GladHesOnOurSide: In reference to the first generation of Screamers, which hunt targets by burrowing under the ground until near their target, then bursting out to [[CruelAndUnusualDeath slice them up with high-speed cutting blades]].
-->'''Soldier 1:''' I'm glad those things are on our side.
-->'''Soldier 2:''' And our side's the good side -- right?
* GoneHorriblyRight: The Screamers were made to kill humans. And they're just getting better and better at it.
* {{Gorn}}: There's a very large amount of blood and gore in ''The Hunting''.
* GrewBeyondTheirProgramming: Not the Screamers in general, as they are programmed to KillAllHumans; they just got smart enough to see past the Tags and get into the bunkers. [[spoiler:Judging from the Shakespeare he quotes, Becker accepts he was created as a killer and thinks there's little meaning in anything else. Jessica with her BlackMarket stash and [[HoneyTrap attractive looks]] is just a more advanced means of getting into a bunker like the Davids. She does in fact get into a restricted area (the escape rocket that only the Alliance commander can access) but refuses to go to Earth for fear her original programming will reassert itself.]]
* HalfTheManHeUsedToBe: [[spoiler:Becker, after getting shot by Hendricksson.]]
* HologramProjectionImperfection: The protagonists have to report a cease fire proposed by the enemy forces. A pair of doors slide open and their superior walks through and starts talking to them -- all appears normal until he suddenly starts to fizz and sputter and the protagonists complain about the unreliability of holographic projection from Earth. [[spoiler:The scene hints at TheReveal that the ProjectedMan is actually dead.]]
* HollywoodTactics: Averted when the Davids swarm out of the Alliance bunker; the protagonists retreat with one group firing and the others retreating, then vice versa.
* HumanResources: The Screamers drag bodies underground to their factories (and presumably to study them for the later human models).
-->'''Hendricksson:''' They're scavengers and they learn; they use everything. Rotting meat gives off methane gas, gas is fuel; hell I don't know. Maybe the eyeball jelly makes handy blade wax.
* IdiotBall: Private Jefferson doesn't hear his Tag warning of an approaching Screamer because he's watching a virtual reality music video projected into his sunglasses and headphones. This is put down to a dumbass NewMeat mistake, but we saw Jefferson earlier walking along with Hendricksson with the headphones playing music; why didn't Hendricksson take them off him then and there, if he's walking through a war zone?
** WhatTheHellHero: Jefferson has his own WhatAnIdiot reaction when he discovers there are automated factories churning out the Screamers, and no-one up top knows anything that goes on down there since (as Hendricksson put it) the last man to do so flicked the switch and ran like hell.
* ImpostorExposingTest: Hendricksson cuts Jessica to ensure she's not one of the increasingly advanced killer robots. [[spoiler:Turns out the latest models can bleed too.]]
* InterestingSituationDuel: Hendricksson fights a human Screamer on a claw-crane suspended over a launch pit [[LaserHallway protected by lethal laser grid]].
* InterruptedDeclarationOfLove:[[spoiler:Jessica's DyingConfessionOfLove to Hendricksson.]]
* InvisibilityCloak: The "tabs" alliance members wear makes them invisible to screamers. Until the screamers start updating themselves...
* KleptomaniacHero: Jefferson shows so much glee at finding the nuclear mini-missile that Hendricksson guesses correctly on the climactic battle that he took it with him even after being ordered not to.
--->'''Hendricksson (after ordering Jefferson to hand it over)''': I know you took it, you little thief!
* KillAllHumans: In fairness the Screamers are programmed to do this, with no discrimination between either side. Those tags the Alliance soldiers wear just obscure their heartbeat so the Screamer can't detect them. [[ItCanThink If they were to become clever enough to see past the tag...]]
* KillItWithFire
** When being swarmed by the David Screamers, the protagonists use [[FireBreathingWeapon flamethrowers]]. Even that's not enough and they have to NukeEm.
** Having lost his weapon, Hendricksson retrieves a FlareGun from the escape rocket's cockpit and shoots the killer robot in the chest, [[ImmuneToBullets but to little effect]]. [[spoiler:Fortunately at that moment the rocket fires up its pre-launch burn, which provides a much more effective means to KillItWithFire.]]
* KineticWeaponsAreJustBetter: The Alliance use the typical post-''Film/{{Aliens}}'' [[OurWeaponsWillBeBoxyInTheFuture rifle/flamethrower combination]]. The N.E.B. soldiers prefer a multi-shot GrenadeLauncher to deal with the Screamers.
* KillAndReplace: Hendricksson finds himself fighting [[spoiler:his friend Chuck, actually a Screamer who killed the original and removed his face. He did the same to Marshall Cooper and says he's going to do the same to Hendricksson. 'Chuck' repeats a conversation they had earlier, so apparently we never saw the real one.]]
* KillerRabbit: The child screamer. [[spoiler:And possibly the teddy bear.]]
* KillerRobot: The screamers were designed to be the perfect soldier. They proved to be [[GoneHorriblyRight a little]] ''[[GoneHorriblyRight too]]'' [[GoneHorriblyRight perfect]].
* KillerTeddyBear: Killer robots looking like little boys, carrying killer robot teddy bears.
* KnifeNut: Becker, who also uses it as a throwing weapon to kill a suspected Screamer.
-->'''Ross:''' [[SinisterScrapingSound Ain't it sharp enough]] ''yet?!!''
-->'''Becker:''' ''(LickingTheBlade)'' It's never sharp enough.
* KillMeNowOrForeverStayYourHand: [[spoiler:After Becker kills Ross, Jessica suggests he might be a Screamer. Becker urges her to fire and be on the safe side. Jessica doesn't fire.]]
* LostInTransmission: Played straight.
-->'''Hendricksson:''' There's a [[LaserGuidedTykeBomb new kind of screamer]]. Do ''not'' let it into the perimeter, over.\\
'''Chuck:''' I missed that last part, over... (static)
* LoudOfWar: The Screamers are called this because of the ear-splitting scream they emit while attacking. You can either cover your ears or fire your weapon at them, but it's difficult to do both.
* MadnessMantra: [[KnifeNut Becker]] quotes from Shakespeare a lot. [[spoiler:He quotes from ''Theatre/HenryVI'' while crushing Joe to death. Chuck does the same while trying to kill Hendricksen.]]
* MakeMeWannaShout: [[spoiler:Hendricksson is about to shoot evil Jessica when she emits an ear-piercing scream, forcing him to drop his weapon to cover his ears. Fortunately she's roasted by the pre-launch burn.]]
* MechanicalEvolution: Just as in the original ''Second Variety.'' The Screamers were designed as self-evolving killer robots, and newer generations even take on human appearance. Eventually [[spoiler:the Type V generation (Jessica) has both a mostly human biology and experiences human emotions, and saves Hendricksen from one of her evil counterparts.]]
* MechanicalLifeforms: During their journey to the NEB base, the protagonists are attacked despite their tags by a more advanced Screamer, a reptile-like creature with legs and a tail.
-->'''David:''' It's like an animal.
-->'''Hendricksen:''' [[MechanicalEvolution It's an upgrade.]]
* TheMenFirst: When the lights go out, Hendricksson orders the others out of the command centre, leaving himself vulnerable when he stays behind to examine the database on the Screamers. He likely only survives because Jessica and Ace went back for him. Later when he offers to cut himself to prove to Jessica that he's not a Screamer, she stops him saying [[AFatherToHisMen she really doesn't need proof]]. Later when he sees the escape rocket has only room for one, he insists that [[AlwaysSaveTheGirl Jessica go instead of himself.]]
* MistakenForAnImposter: One character argues that another one is a screamer, and then tosses a knife through his chest. It then turns out [[spoiler:Becker was the real imposter, invoking this trope]].
* NewMeat: "Ace" Jefferson hits all the points -- [[NaiveNewcomer blindly idealistic]], skilled with weapons in training but TooDumbToLive in practice, and knows nothing about the local situation (in fairness he was going to another planet) so has to have everything explained to him and [[TheWatson therefore the audience]].
* NightmareFace: Before attacking, the Type [=IIIs=], which resemble young boys, open their mouths to reveal [[MoreTeethThanTheOsmondFamily several nested rows of mechanical razor-sharp teeth]].
* NotHisSled: The film, which was based on "Second Variety" by Dick, [[spoiler: retains the original surprise ending that the woman the hero met and bonded with is one of the robot decoys, but changes it so she has broken her programming and isn't out to kill humans. It further departs from the original ending by having her "dying" and putting the hero safely on the shuttle to Earth in a happy Hollywood ending...until it reveals that the teddy bear the hero kept as a souvenir is another deadly robot decoy. The direct-to-video sequel briefly mentions the first film's protagonist choosing to destroy his ship rather than allow the teddy bear to get to Earth, although it's difficult to imagine a single killer robot being able to wipe out the human race without the means to make more of itself]].
* NoBloodForPhlebotinum: The original story took place in WorldWarIII. The film's BackStory adapts the capitalist/communist conflict by having a MegaCorp called N.E.B fighting a worker/scientist Alliance over berynium, which has solved the energy crisis back on Earth but produces large amounts of radiation when mined. The idea of an industrial dispute writ large is at least original, though [[ExcusePlot it bears little relevance to anything that happens in the movie]].
* NuclearOption
** In the BackStory, Sirius 6B has become a DeathWorld thanks to the NEB trying to [[NoKillLikeOverkill bomb the workers into submission with nuclear weaponry]], though apparently there's still a ColdWar going on back on Earth. When [[NoBloodForPhlebotinum resources are discovered on another planet]], a crashed spacecraft disguised as a civilian freighter is revealed to be shipping a nuclear weapons factory there.
** Ace is overjoyed to find a plutonium mini-missile, but Hendricksson orders him to leave it behind. When they're being swarmed by David units, [[GodzillaThreshold Hendricksson orders him to use it]], knowing full well Ace had brought it with him anyway.
* NumberedHomeworld: The film is set on a planet called Sirius 6B. There's mention of Triton IV.
* OminousWalk: [[spoiler:The Davids do this ''en masse''. Becker after the RoboticReveal, though it's uncertain as the extent to which he's genuinely damaged; it gives Hendricksson enough time to grab a gun anyway.]]
* ProtectiveCharm: The "tabs" worn by Alliance soldiers. Notably, as they operate by cancelling out the sound of the wearer's heartbeat, they only work on the basic and Type-I screamers; the humanoid screamers can identify a human target just fine, tab or no. [[spoiler:Hendricksson is implied to doom himself in the end by yanking off his tab in disgust once he leaves the planet; without it, the ''teddy bear'' screamer in the shuttle with him identifies him as a target and starts moving...]]
* PunctuatedForEmphasis
-->'''Hendricksson:''' I pulled this off a David -- it said Type III. Pulled this off the reptile it said Type I, now WHAT...OTHER...TYPE?
* TheRadioDiesFirst: The further Hendricksson gets from his base, the worse the communications get, so he's unable to pass on the warning about the human-looking screamers. Then he finds a working communication terminal at the NEB command post and tries to send a message back, only for Ross to blow it up while shooting a Screamer. [[spoiler:Ironically the man he's trying to warn is a Screamer himself.]]
* RecursiveCreators: The Screamers started building new generations of models themselves after they were originally created by human soldiers.
* RidiculouslyHumanRobots: The latest model of "Swords". One of them [[spoiler: [[ThePowerOfLove falls in love with the hero]] and fights so that he can escape the planet.]]
* {{Robosexual}}: Hendricksson realizes that [[spoiler:Jessica is also a KillerRobot when an identical Jessica shows up. Earlier he'd tested Jessica by cutting her hand and the copy appears to know this, taunting Hendricksson by saying: "We can smile, we can cry, we can bleed, we can fuck."]]
* RoboticReveal: The humanoid Screamers successfully infiltrate human camps before they're revealed. There are so many new generations that the protagonist eventually has trouble believing that [[ExaggeratedTrope anyone besides him is even human]]. In fact, he visits the enemy camp (dwindled down to three remaining soldiers) and [[spoiler:the soldier who is killed under suspicion of being a Screamer turns out to be the only one of the three who ''wasn't'' a robot.]]
* RobotWar: For years the war between the New Economic Block and the Alliance has been fought by self-evolving robotic soldiers. The few survivors are holed up in their bunkers because the entire planet has become a death zone.
* SeeYouInHell: Via Shakespeare quote. "Down, down to hell; and say I sent you."
* ShaggyDogStory: The sequel has [[spoiler:an offscreen mention of the protagonist of the original dying to prevent the screamer from reaching Earth.]]
* SinisterSilhouettes: When the Davids are stalking Hendricksson through the [[DarknessEqualsDeath darkened command post]].
* SmokingIsCool: The film made smoking a plot point: the [[FantasticRadiationShielding drug that helped counter the radiation of the planet]] was administered via cigarette, presumably so the actors didn't have to go around in HazmatSuit and [[InSpaceEveryoneCanSeeYourFace breathing masks]].
-->'''Ace:''' I can't believe you've got to put this shit in your lungs, to neutralise the shit in your lungs.
* SpotTheImposter: [[spoiler:Becker accuses Ross of being a Type II -- he repeats things implying a limited vocabulary like the Davids, he doesn't drink from the Scotch bottle, and his twitchy behavior is UncannyValley. The two men draw on each other, but Becker's thrown knife is faster. Then Hendricksson removes the knife and finds it covered in blood. Oops!]]
** SomethingTheyWouldNeverSay: When Hendricksson returns to base, he calls Chuck and tells him to come outside. A voice claiming to be Chuck refuses, telling Hendricksson to [[SchmuckBait come inside]]. Hendricksson then asks to speak to Theatre/DonGiovanni (the opera music he was playing earlier). When the same voice claiming to be "Don Giovanni" answers, everyone runs like hell.
** Averted when [[spoiler:the two Jessica's are fighting each other. Hendricksson loads a FlarePistol, but can't tell who's who. The evil Jessica than fatally injures the good one and turns on Hendricksson.]]
* TheSwarm:
** The NEB soldier in the opening scene destroys the first two Screamers, but others show up en masse and quickly take him down.
** Once a David unit has infiltrated a bunker, others soon follow to [[KillAllHumans finish off everyone there]].
* TattooAsCharacterType: Becker has the teardrop tattoo.
* TheyLookLikeUsNow: In the original, there were Type [=IIs=] and [=IVs=], which pretended to be wounded soldiers, and Type [=IIIs=], which mimicked [[CreepyChild orphaned children]]. [[spoiler:And Jessica.]] The sequel adds even more variety.
* ToxicPhlebotinum: The process of mining 'Berynium' releases hazardous radiation, which is the root of the conflict between the Alliance and N.E.B. This has no plot significance beyond the movie's prologue and general setting.
* WarWasBeginning: With OpeningScroll (or rather [[ForeverWar War Has Been Going On For Ten Years]]).
* {{Wormsign}}: The first model of Screamers are a type of subterranean killing machines.
* WoundedGazelleGambit: The Type II Screamer pretends to be a wounded soldier.
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!!''Screamers: The Hunting'' has the following tropes:

* AbandonedArea: The former iron ore mine at Bell Island Museum is used for the tunnels the survivors are holed up in.
* ArchaicWeaponForAnAdvancedAge: Hannah prefers a knife or bow & arrow. How she kills Screamers with these is a mystery, given that they're difficult enough to kill with bullets.
* ApeShallNeverKillApe: Averted; when Bronte points out that she killed a Screamer, Guy says that different Varieties of Screamer are killing each other every day. [[TheyWastedAPerfectlyGoodPlot Unfortunately the audience is denied]] a full-on RobotWar with humans caught in the middle.
* ArmorIsUseless: Averted; on realising they have to go back to make contact with the people who fired on them, the team wear helmets and body armor.
* AsYouKnow: Said verbatim by Commander Sexton during his MissionBriefing. There's {{Info Dump}}s on the war and the Screamers for those who didn't see the previous movie. The former should be familiar history to those being briefed, even 13 years later. Information on the meteor storm is handwaved by saying they didn't have that data two months ago (it's implied the information was deliberately withheld).
* BareYourMidriff: Bronte shows off her abs but otherwise provides little {{fanservice}}. [[spoiler:It's foreshadowing for the later RevealShot that she's pregnant.]]
* BelligerentSexualTension: Madden and Schwartz.
* BigElectricSwitch: Used to power up the distress beacon in the ActionPrologue, but not used by Orsow despite him being a MadScientist.
* BodyHorror: When the human Screamers are morphing into {{Killer Robot}}s.
* BlackEyesOfEvil: The FiveSecondForeshadowing that a human is a Screamer, before [[RoboticReveal sharp instruments come bursting out of their bodies]].
* BlackDudeDiesFirst: Not quite; Romulo is actually the ''second'' member of the team to die.
* BloodierAndGorier: The deaths are a [[{{gorn}} lot messier]] than the previous movie.
* CassandraTruth:
** Apparently Colonel Hendricksson did send a final transmission, but this is dismissed as "the delusional ravings of a shell-shocked soldier".
** The survivors fire on the rescue party and refuse to believe they're from Earth. Apparently they have no knowledge of the DistressSignal sent in the ActionPrologue.
** The protagonists are warned about the human-looking Screamers, and that it's a really bad idea for anyone to get back to Earth for this reason. They don't listen.
** [[spoiler:Hanna tells Bronte that Guy [[TheSleepless doesn't appear to sleep]]. When she wakes from hibernation at the end of the movie, she finds the capsule next to her empty. She senses something is wrong, but it's already too late.]]
* {{Catchphrase}}: Hannah keeps saying "Unreal". [[spoiler:It's her FamousLastWords too.]]
* ChairReveal: [[spoiler:Bronte and Guy make it back to the Medusa only to find Hybrid Madden waiting in the pilot's seat.]]
* ChekhovsGun: A vial of acid taken as a sample is used to shut down the electromagnetic field.
* ComeWithMeIfYouWantToLive: Orsow doing his BigDamnHeroes.
* CreditsGag
-->The characters, screamers and events depicted in this motion picture [[ThisIsAWorkOfFiction are fictitious]]. Any similarity to actual persons or screamers, living or dead is purely coincidental and not intended. [[NoAnimalsWereHarmed No screamers were harmed]] in the making of this motion picture.
* {{Cyborg}}: The Hybrid Screamers.
* DeadlyHug: [[spoiler:Danielli's death from the woman he's just rescued. She puts her fist through his chest and out the other side. Later Hybrid Danielli kills Madden in a similar fashion.]]
* DeathByMaterialism: Commander Sexton slips out while the others are asleep and activates a Screamer to download all the information from its AI, which is worth a fortune back on Earth. [[NiceJobBreakingItHero This causes the automated factory to reactivate.]] [[spoiler:As Sexton is dying he passes on the data chip to Bronte, but she just crushes it underfoot.]]
* DramaticSlip: Done with [[TwistedAnkle both female characters]], no less. Bronte falls and Schwartz goes to help her up, leaving them vulnerable to an approaching Screamer. Fortunately Madden shoots it.
* DreamingOfThingsToCome: While in hypersleep Bronte has a CatapultNightmare of future events.
* DueToTheDead: Soderquist is cremated [[VikingFuneral like his ancestors]]. Given that the Screamers salvage any bodies, it's actually the best thing that can be done. [[spoiler:Unfortunately Schwartz [[NeverSplitTheParty stays back to take care of Hannah's body and gets killed]].]]
* ElaborateUndergroundBase: The characters have an OhCrap reaction when they see just how ''big'' the automated Screamer factory is.
* EmergencyRefuelling: After a member of their team dies when they're fired on by the people they've come to rescue, Sexton decides ScrewThisImOuttaHere and orders them to return to the Medusa. They find a Screamer has gotten on board and drained their power cells, so they have to go and [[McGuffin find new ones]] before the meteor storm hits.
* TheEndOfTheBeginning: Instead of TheEnd there's a title card which says [[HereWeGoAgain The Beginning...]] [[spoiler:as the Screamers will now start doing on Earth what they did on Sirius 6B.]]
* EnemyRisingBehind: Or lowering from the ceiling behind [[spoiler:when Schwartz is attacked by a horseshoe crab-like Screamer.]]
* EverybodySmokes: Averted; there's a throw-away comment that radiation levels are within survivability limits and no-one is seen smoking their Reds, even the survivors.
* EvilAllAlong: [[spoiler:Guy starts as a sinister character, but then warms up to Bronte. Even for those in the audience who suspect that Guy is a Screamer (probably everyone) the events of the first movie appear to be playing out, but this time he murders the protagonist after the RoboticReveal, rather than overcoming his programming as Jessica did.]]
* FalseInnocenceTrick: The team is sceptical when told the more advanced Screamers [[TheyLookLikeUsNow can take human form]]. The survivors are a bit vague as to where they get food to survive, so when the team find a bloody dissection table and several people imprisoned behind SomeKindOfForcefield, they naturally assume they're [[NoPartyLikeADonnerParty being used as food]]. Once freed however, the 'victims' quickly sprout cybernetic killing blades and [[KillAllHumans attack their rescuers]]. The irony is the Screamers probably [[ScavengerWorld were being used as food and spare parts]].
* [[spoiler:FetusTerrible: The final shot is the fetus in Bronte's womb sprouting a cutting blade.]]
* GadgeteerGenius: Orsow invented the original Screamers, and has developed a LightningGun and an improved Tag.
* GetItOverWith: [[spoiler:Schwartz is being choked to death by a snake-like Screamer and gasps, "Please...just make it fast..." The Screamer obliges, releasing its grip only to ram its tail through her chest.]]
* GrewBeyondTheirProgramming: Averted; one of the Hybrids gives a MotiveRant that they've evolved into a superior being, but their basic incentive is still to KillAllHumans, so it's doubtful that they've really changed at all.
* HeroicSacrifice
** Sgt. Romulo hands his tag to Danielli when the latter loses his. Moments later he's crippled by Screamers and stays behind while the others escape. Combined with TakingYouWithMe as Romulo blows himself up with a grenade.
** Colonel Hendricksson from the previous movie self-destructed his escape rocket to stop the Screamer getting back to Earth.
* HollywoodAcid: After walking into a mining tunnel dripping with water, Sutton gets scorched when a drop falls on his hand. Turns out it's RA-6, a radioactive acid by-product of the mining.
* HumanityIsInsane: And being TheSpock can make you an object of suspicion.
-->'''Hannah:''' Humans are irrational! But him...he never does anything without a reason.
* HumanPopsicle: The spaceship crew is required to hybernate for two months when traveling between Earth and Sirius 6B.
* ImmuneToBullets: Bronte empties her pistol into [[spoiler:Hybrid Madden's chest to no avail, and even the LightningGun has little effect until Guy gives Hybrid Madden the full blast and disintegrates him.]]
* IfYouKillHimYouWillBeJustLikeHim: When Bronte finds that her commander has downloaded data on the Screamers to take back to Earth, she puts a gun to his head, but doesn't pull the trigger despite his expectations.
* ItsPersonal: Bronte turned down her own command to go on the mission. Turns out she's Hendricksson's daughter, looking for answers as to why her father supposedly killed himself.
* JustThinkOfThePotential: The cybernetic technology developed by the Screamers is worth a fortune on Earth, but the Alliance has banned import for fear it would lead to more Screamers being created.
* KillAndReplace: Though not used as infiltration units [[TheyWastedAPerfectlyGoodPlot as you'd expect]]. The characters barely have time to say ThisCannotBe as NoOneCouldSurviveThat before the Screamer concerned is chewing on their face.
* KnifeStruggle: [[spoiler:Hannah puts her knife to Guys' throat and insists he's a Screamer. She ends up being stabbed when Sexton tries to grab it off her.]]
* LeaveNoManBehind: Averted with Commander Sexton. He's prepared to abandon the mission after his sergeant gets killed, [[spoiler:and is later revealed to be ready to abandon the others ("They're not my friends.") once he gets working power cells. Bronte ironically goes back for him (she is [[GenerationXerox her father's daughter]], after all) but Sexton is already fatally injured.]]
* LickingTheBlade: Guy cuts Bronte's hand and tastes her blood. Apparently the artificial blood of a Screamer [[SpotTheImposter tastes different]], but as the rescue team haven't seen a human Screamer, this only convinces them that he's a villain after they find the survivors have been eating people.
* LightningGun: Invented by Orsow to knock out Screamers.
* LovesMeNot: The {{Yandere}} is doing this as a MadnessMantra while the object of her infatuation is loading bullets into a magazine and [[SinisterScrapingSound she's sharpening her knife]]. Later she sees him talking to Bronte and finishes, "He loves me not..."
* MadeOfPlasticine: A female Screamer [[SuperStrength punches her fist through bodies and even skulls]]. The Hybrids have a drill tongue that does the job more efficiently.
* MyGodWhatHaveIDone: Sexton is noticeably shaken when he sees the Screamer he reactivated has gotten onto the Medusa, killed a crewman and drained their power cells, preventing their escape.
* MysteriousWatcher: As soon as they set out, the team is observed through RoboCam by a humanoid figure in GasMaskLongcoat. [[spoiler:He's not a cyborg but GadgeteerGenius Orsow.]]
* NeverSplitTheParty: Played for the usual horror movie IdiotBall. One character even asks, "Why?" when told to stay behind for no logical reason.
* NiceJobBreakingItHero:
** Sexton turns on a Screamer to download the information from its AI. In doing so he activates the automated Screamer factory.
** It's suggested that Colonel Hendricksson self-destructed his own spaceship to stop the Screamers from getting back to Earth. [[spoiler:His daughter manages to bring back a highly-advanced Screamer model.]]
* NightmareFace: The Hybrids have four mandibles that unfold out of their mouths, and a drill on their tongues.
* NotHelpingYourCase: [[spoiler:Hannah tries to warn Bronte there's something UncannyValley about Guy, but it doesn't help that she's openly jealous and waving a knife about while ranting crazily.]]
* NotQuiteDead: The inventor of the Screamers, an engineer called Orsow, was supposedly [[TurnedAgainstTheirMasters killed by his own creation]] [[spoiler:but turns out to be the MysteriousWatcher. Played straight with Danielli who staggers in after an apparently fatal injury earlier in the movie, only to quickly reveal himself as a Hybrid Screamer.]]
* OffWithHisHead: In the ActionPrologue TheSquadette catches a Screamer full in the face, decapitating her in one stroke. Later a sentry gets his head chopped in half by a Type V.
* PlotHole: How did the Screamer get into the ship to drain the power cells? No-one left a hatch open, and if they can burrow through or infiltrate the hull, [[ScavengerWorld why isn't the spaceship in pieces]] by the time they get back to it?
* QuarantineWithExtremePrejudice: Orsow would rather let everyone die (including himself) rather than take the risk of Screamers getting to Earth. [[spoiler:Sexton discovers that he has the power cells they need running his defenses, despite claiming otherwise. Sexton kills Orsow and steals the cells [[ItsAllAboutMe regardless of the fact]] that it will let all the Screamers inside.]]
* RaceAgainstTheClock: The search team has six days to look for survivors before the planet is hit by a [[ColonyDrop massive meteor shower that will kill everyone on the planet]].
* SealedEvilInACan: The Screamers are assumed to have shut down once they killed everyone on Sirius 6B. Turns out some of them are still active, killing each other and the few remaining survivors, and Sexton inadvertently activates a factory to create more of them.
* SelfDestructMechanism: One activates automatically (with requisite countdown) when the power shuts down allowing TheSwarm of approaching Screamers inside Orsow's base.
* SendInTheSearchTeam in response to a DistressCall. The Screamers were assumed to have killed everyone on the planet, so no-one has been to check before now.
* SexyDiscretionShot: The sex scene is a shirtless Guy kissing Bronte's bare midriff.
* ScavengerWorld: Both Screamers and humans are using each other as HumanResources.
* ScreamingWoman: Despite being a CombatMedic, Schwartz screams and {{Security Cling}}s to Madden after seeing the shredded remains of Soderquist.
* StockFootage from the previous movie is used for the data module's {{exposition}} {{montage}}.
* TokenRomance: There's little chemistry between the leads and no apparent reason why Bronte would have sex with a stranger she's recently met [[spoiler:other than it's required for the CruelTwistEnding.]] Compare the Jessica/Hendricksson relationship which managed to have both {{UST}} and a LoveConfession without sex.
* {{Transhuman}}: [[spoiler:Hybrid Madden claims that the real Madden is still inside him -- he's just been upgraded to a superior being. [[WeCanRuleTogether He even offers Bronte a chance to join him.]] Guy however kills Madden [[CantKillYouStillNeedYou saying he just wants her as a pilot]] to get him to Earth. As it turns out, that's exactly what Guy wants her for; that and a human incubator for the next Variety of Hybrid Screamer. "He's our first...and there won't be anyone like him. Ever."]]
* TwoGirlsToATeam: Bronte and Schwartz in the rescue team.
* WhatHappenedToTheMouse:
** There is no mention of the N.E.B. and conversation in general gives the impression that Alliance is the governing body of Earth. Particularly puzzling since the first film established that the N.E.B. (who were in a state of UsefulNotes/ColdWar with the Alliance) was not stymied by the loss of Sirius 6B and moved on to a new planet where they found Berynium deposits.
** The identity and fate of the group that sent the distress signal is also left unexplained. Two of them get killed and one of them manages to barricade himself in the communication array and send the distress signal. However, the rescue team never makes it there. All we can determine is that they were not affiliated with the survivors at the refinery (who were unfamiliar with a distress call and disbelieved the rescue team when they mentioned it) or Orsow (who stated that he does not wish anyone leaving the planet for fear of spreading the Screamers).
* WormSign: The orb-shaped Screamers move so fast they send dirt flying into the air as they burrow through the ground beneath.
* {{Yandere}}: After seeing Guy is interested in Bronte, Hannah sneaks up on her [[KnifeNut with a knife]] when she sleeping, but she wakes just in time.

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