Albert Coleman

Desperate for a job to help him support his family, Jim Norman takes a position teaching high school in the town where his brother was murdered in front of him by teenage bullies twenty-seven years before. The teens who committed the crime are long dead, but now the kids in Jim's new class keep dying and being replaced by new students who look like the deceased hoodlums.

When teenage geniuses Mitch Taylor and Chris Knight, working on an advanced laser project, learn that the military wants to use it as a weapon, they decide to thwart the plan.

Upon graduation from high school eight teens take a seaplane trip, intending to celebrate on Keith's parents' private island. Stormy weather causes the plane to crash and they end up on a deserted isle. They find evidence of other visitors, and soon must fend for their lives against drug smugglers.