Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
Fine special effects help this film along by adding an atmosphere of impending danger. When the eggs of an ancient sea creature contaminate a lake in California, scientist Conried picks them up for study. They quickly hatch into oversized caterpillars and swarm around a nearby naval base in search of human food.