''Dead Space: Aftermath'' is a {{direct to video}} {{sequel}} to ''VideoGame/DeadSpace'' set in the ''Franchise/DeadSpace'' universe. The movie is told mostly in flashback by the remaining crew of the ''USG O'Bannon'', explaining to the crew of the ''USG Abraxis'' what happened to the rest of the ship.

Following the events of ''[=Dead Space=]'', the crew of the ''O'Bannon'' are sent to Aegis VII to collect any remaining traces of the Red Marker destroyed by Isaac Clarke. A member of the survey team, Nickolas Kuttner, stumbles upon one such shard and is driven mad in short order. Seeing visions of his deceased daughter, Vivian, he accidentally disables one the planetary stabilizers in a misguided attempt to save her. The resulting chain reaction destroys the planet and cripples the ''O'Bannon''. The survey team barely makes it back.

Scientist Nolan Stross experiments on the recovered shard, and he too begins seeing visions. Alien symbols fill his vision, which he believes to be the key to the alien language. He exposes the shard to a corpse, thinking that it will revive the body. It does, but not like he expects. The corpse is turned into a [[OurZombiesAreDifferent Necromorph]] and quickly escapes. It slaughters the crew, [[TheVirus turning them into more Necromorphs]]. Stross kills his wife and son, believing they were more Necromorphs, before being found by his mistress Isabel Cho.

Cho, Stross, Kuttner, and engineer Alejandro Borges make their way to the ship's engines. They throw the shard into the engine, destroying it [[NoOntologicalInertia and the Necromorphs]]. The survivors are picked up by the ''Abraxis'', where the story begins.
!!''Dead Space: Aftermath'' provides examples of the following tropes:

* AdultFear: Poor Kuttner. Honestly, if you came into contact with something that [[spoiler:made you see visions of your own dead daughter, would ''you'' behave any more rationally? Even if you knew there was no way she was really there?]]
* AnOfferYouCantRefuse: Cho is given one from the Overseer, who gives her the chance of joining the Earth government conspiracy surrounding the Markers with the obvious implication being she'll be killed otherwise. She unwisely tries to refuse, which goes about as well as you'd expect.
* ArtificialLimbs: Borges has a cybernetic arm.
* ArtShift: The present story is told in CGI, while the flashbacks are done in a {{anime}} design. In addition, each flashback has its own distinct style.
* AttackItsWeakPoint: No one ever figures out that the limbs on Necromorphs gotta go, but they have an uncanny knack for hitting them anyway.
* TheBadGuyWins: Cho is [[spoiler:lobotomized and used as a scapegoat for the Aegis VII disaster after she refused to work for the Overseer]], and Stross is [[spoiler:imprisoned for study on the Marker's affects on the human mind.]]
* BlackDudeDiesFirst:
** [[spoiler:Kuttner is the first main character to die onscreen, but as the flashbacks show, he wasn't the first main character to be killed in the storyline.]]
** Also subverted for (very, very, extremely) darkly humorous effect. [[spoiler: At the very end of the film, the interrogator is executed by the overseer in the exact same way Borges was under his hand, complete with an unspoken, casual order given to a nearby security officer.]]
* BoomHeadshot
** Kuttner deals out a lot of these.
** Poor [[spoiler:[[YouHaveOutlivedYourUsefulness Borges]]]].
* BuriedAlive: Stross' fear.
* CoitusEnsues: Even if Cho and Stross are having an affair, her randomly jumping his bones in the middle of studying the shard still seems a bit forced.
* ContinuousDecompression: When the hull is breached, the air takes way longer to vent than it should. Notably, the games are actually a lot better about this.
** No one is bothered by the lack of air either.
* DownerEnding: Given this is a prequel to ''Dead Space 2'', it can only go south for the survivors. Worst of all was [[spoiler: Cho, who gets the honor of getting a drill through the head after turning down their offer and is then posthumously pinned for the "Terrorist Attack" on Aegis VII.]]
* DrivenToMadness: Touching the Marker fragment causes this, though smarter people are able to cope ''slightly'' better than those with average intelligence. [[spoiler:Stross is one of those smarter people, but he still brutally murdered his wife and child, believing them to be monsters-a Slasher and a Lurker, respectively.]]
* DrivenToSuicide: [[spoiler:Kuttner blows himself and an entire squad of soldiers out an airlock, since he believes his daughter is on the other side.]]
* ExplosiveInstrumentation: In Borges' flashback, the shockwave from the destruction of Aegis VII hits the ''O'Brian'', causing a number of explosive equipment failures. This includes a control console on the bridge going up right in an unfortunate technician's face.
* {{Expy}}: Captain Campbell looks quite a bit like the ''Ishimura''[='=]s Captain Mathius from the previous film, ''Downfall''. [[spoiler: Their behavior is radically different, however. Campbell recognizes the Marker is affecting his judgment and orders Stross to take it away from him, while Mathius suffered significant SanitySlippage. Campbell is legitimately heroic and dies to save others, while Mathius is obstructive at best, and is accidentally killed when Kyne tries to relieve him of his post]].
* FromASingleCell: A variant. The Marker can't actually regenerate, but every piece of it is as potent as the whole, no matter how small.
* GenreBlind: Despite everything she's witnessed about her interrogators, Cho doesn't realize she's in both a horror story ''and'' conspiracy thriller until it's too late.
* {{Gorn}}: This is ''Dead Space''.
* HeroicWillpower: [[spoiler:Kuttner takes two shots center mass, but still manages to summon the effort to reach his daughter.]]
* HeroicSacrifice: [[spoiler: Captain Campbell closes a door to save the others from a hull breach and detonates a grenade when the necromorphs ZergRush him.]]
* KillEmAll: Just like the [[WesternAnimation/DeadSpaceDownfall movie]] that came before it, [[spoiler:only one of the main characters is left to make it into the next game: Stross.]]
* KillItWithFire
** Borges rigs up some flamethrowers and incendiary grenades to deal with the Necromorphs.
** A variant of this is used to destroy the [[spoiler: Marker shards. The protagonists drop them in the O'Bannon's fusion reactor.]]
* LoweredMonsterDifficulty: The Necromorphs are a lot more fragile than they're supposed to be, even accounting for the protagonists' unusually lucky shots. Subverted with the bigger ones; when the Brute shows up, all they can manage is to stun it briefly.
* ManOnFire: Kuttner's fear.
* NoNameGiven: All the Earth government officials are never identified beyond their job assignments, IE the Overseer.
* NoOntologicalInertia: Without the Marker signal, the Necromorphs instantly liquify.
* {{Retirony}}: Campbell, [[spoiler:just before sacrificing himself]], mentions that he should have heeded his wife's advice to retire instead before taking on this mission.
* {{Room 101}}: The thing that coerces the four survivors into telling their stories.
* SanitySlippage: Poor Kuttner.
* ShootTheHostage: The military does not mess around when it comes to subduing an unruly prisoner.
* ShoutOut
** Borges' cousin is seen playing ''VideoGame/DantesInferno'' at a couple moments of downtime.
** And a less overt one appears when Captain Campbell is seen drinking [[VideoGame/DragonAgeII Kirkwall]] whiskey.
** Let's not forget the name of the ship, O'Bannon, a call-out to ''Alien'' writer Dan O'Bannon.
* SmokingHotSex: Stross in Cho's flashback.
* TakingYouWithMe. [[spoiler:Campbell]] uses an incendiary grenade to take down a bunch of Necromorphs after manually sealing a door so the others can escape.
* ThroughTheEyesOfMadness: Stross and Kuttner both see visions of things that aren't there or aren't as they seem. Though Kuttner's hallucinations are pretty clearly a product of his mind, you'd be forgiven for mistaking some of Stross' hallucinations for reality.
* TheUnreveal: We never learn what the interrogation chair showed Cho.
* WhyDidItHaveToBeSnakes: The interrogation chair is able to create hallucinations of the subject's worst fear. More specifically, Borges is afraid of spiders.
* YouHaveOutlivedYourUsefulness:
** [[spoiler:Borges]] is unceremoniously executed once they determine he has had no contact with the Marker, and thus is of no further use. [[spoiler:Cho]], on the other hand, gets the unfortunate honor of being useful after that fact is determined, since there were no other potential subjects to examine.
** The Overseer has the remaining two interrogators executed after they complete the questioning of the ''O'Bannon'' survivors.
* YourCheatingHeart: Alexis, Stross' wife, already had strong suspicions that he was having an affair with Cho.
* ZergRush: The 100+ crew goes down to a half-dozen within ten minutes or so, resulting in this trope when the corpses get back up.