Carol Dahlmann enlists the Hollister brothers to help locate her missing husband. The husband was tracking a fallen satellite through the jungle. While tracking him down, the trio discover an unusually strong acid killing animals and people.

Alcoholic detective investigating the murder of an actress starts getting worried when all fingers begin to point at him.

A cowboy has to get 12,000 dollars in stolen bonds from the ex-girlfriend of his partner, or the gang holding him hostage will kill him.

Three beatniks are brought together to rob an armored car, only to face betrayal from amongst their ranks.

Giant robots from Venus invade Chicago. Stranded in the deserted city are Frank and Nora (who has recently attempted suicide). They meet a celebrating couple at a café, Vicki Harris and Jim Wilson. The quartet escape the robot patrol and take refuge in a large hotel. There, they encounter a new danger in Davis, a psychopathic killer.