The braking system fails on a heavy truck on RN 82, going into the city of Saint-Etienne. The truck veers out of control, hitting several vehicles, knocking down a pedestrian and literally crushing a car with a young woman at the wheel. The brakeless truck finally comes to a stop when it crashes into a petrol station; the truck driver manages to avoid hitting the fuel pumps. The female car driver is killed instantly, and the wounded pedestrian dies of injuries sustained in the accident.