The Devil at Your Heels is a 1981 documentary that chronicles the attempt of the stuntman and daredevil Ken Carter to jump a rocket-powered car over the Saint Lawrence River, a distance of one mile.
Synopsis
The documentary opens with some quick framing of the task, including footage of the ramp and the car to be used for the jump, and then chronicles how Carter became a daredevil, including footage of some early jumps. It then follows the ups and downs he experienced in his five-year journey to jump the river. He has a series of financial and technical obstacles. Technical problems included difficulties with the car (the fuel tank kept blowing up) and the ramp he was planning to jump off (it was bumpy and not structurally sound). The financial problems were simpler; he kept running out of money and his backers were unhappy.
In the fifth year, everything was ready, but two attempts were called off — one because of a short strike by the ground crew, and one because of weather. The backers, desperate to finish, believed that Carter had lost his nerve and called him to a meeting in another city, and then brought in another driver, American Kenny Powers, to attempt the jump.
The bumps in the ramp had not been fixed, and as the car accelerated, it started to shake itself to pieces and fell apart in midair. The parachutes deployed and the car landed in shallow water. Powers survived with eight broken vertebrae (he later recovered fully). The effort to make the jump was abandoned.