A video store clerk stumbles onto an alien plot to take over earth by brainwashing people with a bad ’50s science fiction movie. He and his friends race to stop the aliens before the tapes can be distributed world-wide.

A naïve young boy unknowingly becomes the pawn of a serial killer.

Five campers arrive in the mountains to examine some property they have bought, but are warned by the forest ranger Roy McLean that a huge machete-wielding maniac has been terrorising the area. Ignoring the warnings, they set up camp, and start disappearing one by one. If that sounds too run-of-the-mill, there’s a genuinely shocking plot twist half-way through…

At the beginning of the film, we learn from one of the characters that earthworms can be called to the surface with electricity, but somehow it turns them into vicious flesh-eaters. Sure enough, a storm that night causes some power lines to break and touch the ground, drawing millions of man-eating worms out of the earth, and into town where they quickly start munching on the locals.