A motorcycle gang kidnaps a young woman, Josie, from a diner and brutally kills her. Many years later, the girl's father finds a magic crystal that can bring the life back to dead objects. He uses it to re-animate his daughter. He lets her seduce any young man that comes to visit the small town and then kills them. Four young students, two boys and two girls spend a vacation near the town, Hellgate. They hear about the story and get involved.

The Snake Eaters are an elite division of the Marines especially trained for search and destroy missions. This actioner chronicles the exploits of one of them who has become a cop. Known as a tough loner, he returns to find the band of backwoods bad-guys who killed his parents and abducted his sister.

A Vietnam vet breaks out of a mental institution to go after drug-dealing gangsters who are selling contaminated product that is killing people.

In a research lab, a scientist's pet chimpanzee mixes up an invisibility formula. A young woman accidentally drinks the solution and becomes invisible.