A herpetologist investigating a series of fatal rattlesnake attacks discovers that the creatures have been infected by a mysterious nerve gas disposed of in the desert by the military.
An international expedition is sent into Cambodia to destroy an ancient formula that turns men into zombies.
Stranded on Mars with only a monkey as a companion, an astronaut must figure out how to find oxygen, water, and food on the lifeless planet.
A professor recruits a professional wrestler to protect his daughter from vampires intent on kidnaping her and marrying her to the devil.