Martin's attempts at filming his own horror movie are interrupted when a giant ant emerges from the screen of the local Drive-In which is showing an old sci-fi movie about giant insects. Martin and Diana soon discover a 500 years curse is bringing the Beasts of the Perigee to life and since Java was playing the creature in Martin's movie he's been transformed into a real radioactive swamp zombie. To make matters worse if the monsters aren't all defeated by sunrise then they'll become indestructible and Torrington will never be rid of them.

The gang investigates what monster scared a couple while they were watching a movie. Martin's horror movie is interuppted when they are called to investigate the incident. Martin and Diana discovers that a 500 years old curse is causing imaginary monsters into the real life. Java also turns into a monster since he plays a monster in Martin's movie. If the monsters aren't destroyed by sunrise, then they will become indestructible!