History Film / InvisibleInvaders

* MakeMeWannaShout: The invaders' only weakness is a high-pitched sound wave. It turns them visible and then disintegrates them to foam.

After a [[ILoveNuclearPower radioactive accident]] kills Dr. Karol Noymann (Carradine), his friend and colleague Dr. Adam Penner (Tonge), starts the initiative to stop nuclear experimentation. Later, Noymann's body is possessed by an [[{{Invisibility}} invisible alien]] and goes to Penner's house to warn him that if humanity does not stop nuclear testing, they will destroy the earth. At first [[CassandraTruth no one believes him]], but the invaders start to make public announcements and Major Bruce Jay (Agar) recruits Penner, as well as his daughter Phyllis (Byron) and her boyfriend Dr. John Lamont (Hutton), to find a way to kill the monsters.

A minor cult classic, ''Invisible Invaders'' is mostly known for being arguably the TropeMaker of ZombieApocalypse almost a decade before ''Film/NightOfTheLivingDead1968''.

[[quoteright:320:https://static.tvtropes.org/pmwiki/pub/images/image4_4763.jpg]]
[[caption-width-right:320:From left to right: Maj. Jay, Phyllis Penner, Dr. Adam Penner, and Dr. Lamont]]

''Invisible Invaders'' is a 1959 Sci-Fi movie directed by Edward L. Cahn and starring Philip Tonge, John Agar, Jean Byron, Robert Hutton, and Creator/JohnCarradine.

After a [[ILoveNuclearPower radioactive accident]] kills Dr. Karol Noymann (Carradine), his friend and colleague Dr. Adam Penner (Tonge), starts the initiative to stop nuclear experimentation. Later, Noymann's body is possessed by an [[{{Invisibility}} invisible alien]] and goes to Penner's house to warn him that if humanity does not stop nuclear testing, they will destroy the earth. At first [[CassandraTruth no one believes him]], but the invaders start to make public announcements and Major Jay (Agar) recruits Penner, as well as his daughter Phyllis (Byron) and her boyfriend Dr. John Lamont (Hutton), to find a way to kill the monsters.

* RaceAgainstTime: The aliens swear, on the moment they declare war, that they will KillAllHumans in a campaign lasting three days (and the armies of the world can do squat to stop them from fulfilling this promise), so the group has a ''very'' short deadline to find something that will stop the invaders.

[[quoteright:318:https://static.tvtropes.org/pmwiki/pub/images/image4_4763.jpg]]
[[caption-width-right:318:From left to right: Maj. Jay, Phyllis Penner, Dr. Adam Penner and Dr. Lamont]]

* ClosedCircle: The whole group is inside of a bunker surrounded by invaders looking to find them and kill them, and then go inside and kill them. Once they have managed to develop a weapon, the invaders jam the communications, forcing Major Jay, Ms. Penner and Dr. Lamont to go out and destroy the ship.

''Invisible Invaders'' is a 1959 Sci-Fi movie directed by Edward L. Cahn and starring Philip Tonge as Dr. Adam Penner, John Agar as Maj. Bruce Jay, Jean Byron as Phyllis Penner, Robert Hutton as Dr. John Lamont and John Carradine as Dr. Karol Noymann.

After a [[ILoveNuclearPower radioactive accident]] kills Dr. Noymann, his friend, Dr. Penner, starts the initiative to stop nuclear experimentation. Later, Dr. Noymann's body is possessed by an [[{{Invisibility}} invisible alien]] and goes to Penner's house to warn him that if humanity does not stop nuclear testing, they will destroy the earth. At first [[CassandraTruth no one believes him]], but the invaders start to make public announcements and Maj. Jay recruits him as well as his daughter, Phyllis, and her boyfriend, Lamont, to find a way to kill the monsters.

* ItNeverGetsAnyEasier: Major Jay is a veteran of TheKoreanWar, but still [[INeedAFreakingDrink needs a freaking drink]] after performing a BoomHeadshot on a desperate farmer that tried to take their transport at gunpoint (he invokes IDidWhatIHadToDo and then adds this trope).

* WormSign: The invisible aliens leave behind grooves on the ground (and bent shrubbery) wherever they go.

A minor cult classic, ''Invisible Invaders'' is mostly known for being the UrExample of ZombieApocalypse almost a decade before ''Film/NightOfTheLivingDead1968''.

* ApocalypseHow: Class 2

* AtomicHate: The PlotTriggeringDeath of Dr. Noymann occurs because of an accidental atomic explosion, Dr. Penner shows a distaste for the American government refusing to use atomic energy for the benefit of mankind (instead focusing on making nuclear weapons), and the invaders decide to invade and KillAllHumans when they first thought of Earth as an insignificant planet because of humanity advancing rapidly on the creation of atomic weaponry.

* ((Narrator}}: One which provides [[InfoDump quite a lot of information, some of which could have been given on-screen]] [[CaptainObvious or is pretty obvious to deduce from what is happening]].

* AtomicHate: The PlotTriggeringDeath of Dr. Noymann occurs because of an accidental explosion, Dr. Penner shows a distaste for the American government refusing to use atomic energy for the benefit of mankind (instead focusing on making nuclear weapons), and the invaders decide to invade and KillAllHumans when they first thought of Earth as an insignificant planet because of humanity advancing rapidly on the creation of atomic weaponry.

* AtomicHate: The PlotInducingDeath of Dr. Noymann occurs because of an accidental explosion, Dr. Penner shows a distaste for the American government refusing to use atomic energy for the benefit of mankind (instead focusing on making nuclear weapons), and the invaders decide to invade and KillAllHumans when they first thought of Earth as an insignificant planet because of humanity advancing rapidly on the creation of atomic weaponry.

* PlotInducingDeath: That of Dr. Karol Noymann. The fact that [[AtomicHate he died in an accidental nuclear explosion, said explosion irradiated the entire area surrounding the lab and the military is borderline nonchalant about the implications]] is what drives Dr. Penner to quit the Atomic Commission... and for the invaders to pick Dr. Noymann's cadaver to visit Dr. Penner.

* ElaborateUndergroundBase: As "elaborate" as it can get with virtually no budget, any case: the underground fallout bunker where the group goes to and performs their research, one of various where other scientist VIPs have been placed around the world, with a big garage and top-of-the-line laboratory which includes a nice pressure chamber-slash-containment facility.