A small town infestation of crawling alien foreheads that begin attaching to people and taking them over collides with a scientist's experiments to extract foreheadazine and things go horribly horribly wrong.

In the 1930s the family of old Sinas Cavinder, gathered for the reading of his will, find themselves being murdered by a mysterious phantom while two rival reporters compete for the story.

A dedicated scientist, aided by his clueless wife, rolls up his shirt sleeves and tries to save the world from a radioactive monster, curious space aliens, an evil scientist and a crabby skeleton.

Jerranium 90, a "little rock" that made all the papers, is buried deep within the Amazon. And everybody wants it, including crooked importer Handscomb Draile, slimy Gondreau Slykes, cheap crook Carl Traeger and evil scientist Dr. Ellamy Royne.

In an abandoned prison, a doctor has revived executed convicts as the living dead. Teenager, Jonathan creates a laser gun from a videodisc player and pursues the walking dead, aided by his girlfriend and grandfather. Also tracking down the zombies is a tabloid reporter.