Based on the true story of Montrealer Ken Carter, the “Mad Canadian” stunt driver who tried to jump the Saint Lawrence River in a rocket car in the mid-’70s. Carter's dream was to end his 30-year career with a big jump, a big paycheck, and mega stardom. In the process of accomplishing it, he hired a big sports manager and enlisted the best in rocket car design, with the National Film Board of Canada filming a documentary leading up to the event.