This time, a cataclysmic temblor hits Los Angeles, turning it into an island. The president views the quake as a sign from above, expels Los Angeles from the country and makes it a penal colony for those found guilty of moral crimes. When his daughter, part of a resistance movement, steals the control unit for a doomsday weapon, Snake again gets tapped to save the day.
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 powers, making them even harder to destroy!