Laurie isn't sure what to make of 'The Wave'. It had begun as a simple history experiment to liven up their World War II studies and had become a craze that was taking over their lives. Laurie's classmates are changing from normal teenagers into chanting, saluting fanatics. 'The Wave' is sweeping through the school - and it is out of control. Laurie's friends scoff at her warnings but she knows she must make them see what they have become before it's too late.