Two films, four decades apart.. what began as a quiet terror in the Mojave Desert never truly ended. When the snakes return, so does everything the government tried to bury.

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.
A series of fatal rattlesnake attacks in the California desert re-opens an investigation that began 45 years ago.