When Billy Peltzer is given a strange but adorable pet named Gizmo for Christmas, he inadvertently breaks the three important rules of caring for a Mogwai, and unleashes a horde of mischievous gremlins on a small town.

When secretive new neighbors move in next door, suburbanite Ray Peterson and his friends let their paranoia get the best of them as they start to suspect the newcomers of evildoings and commence an investigation. But it's hardly how Ray, who much prefers drinking beer, reading his newspaper and watching a ball game on the tube expected...

Test pilot Tuck Pendleton volunteers to test a special vessel for a miniaturization experiment. Accidentally injected into a neurotic hypochondriac, Jack Putter, Tuck must convince Jack to find his ex-girlfriend, Lydia Maxwell, to help him extract Tuck and his ship and re-enlarge them before his oxygen runs out.

Young sweethearts Billy and Kate move to the Big Apple, land jobs in a high-tech office park and soon reunite with the friendly and lovable Gizmo. But a series of accidents creates a whole new generation of Gremlins. The situation worsens when the devilish green creatures invade a top-secret laboratory and develop genetically altered p...

When missile technology is used to enhance toy action figures, the toys soon begin to take their battle programming too seriously.