In California, an old man (Bela Lugosi) grieves the loss of his wife (Vampira) and on the next day he also dies. However, the space soldier Eros and his mate Tanna use an electric device to resurrect them both and the strong Inspector Clay who was murdered by the couple. Their intention is not to conquer Earth but to stop mankind from developing the powerful bomb "Solaranite" that would threaten the universe. When the population of Hollywood and Washington DC sees flying saucers in the sky, a colonel, a police lieutenant, a commercial pilot, his wife and a policeman try to stop the aliens.

A newly divorced young woman, Jude, finds a mysterious, grotesque looking root on her hike and decides to take it home; as she cares for it, she notices that the root changes its appearance. But the change is far from being physical and she soon finds out that there is something far more sinister at play than it being just a ordinary plant. Plagued by horrid and violent hallucinations, Jude fights for her own survival.

A developer relocates to a remote island with his family, where the cursed land takes over his soul and makes him a killer.

Mercenaries with nothing to lose are hired to rescue a bioengineer imprisoned in a cold war bunker. Upon entering the ominous facility, they find themselves in a fight for their lives when they come under attack from an unknown and deadly creature.

In a small town in central Oregon, Frank Weaver runs a meth lab out of an abandoned mine. While his young son Aiden waits outside the mine in his truck, Frank and an accomplice are attacked by an unseen creature. Investigating strange noises, Aiden is also attacked by the creature. Frank and Aiden survive their encounter with the creature and return home, where their condition quickly worsens. Frank sets up a locked room and demands that no matter what, Aiden's older brother Lucas keeps them locked inside.