In this episode, the Simpsons go to a Monster truck rally that has famous daredevil "Lance Murdock." Bart immediately becomes excited by this and decides that he wants to become a daredevil as well. Bart's first trick ends in injury, and although the family and "Dr. Hibbert's" best efforts, Bart continues to try tricks. Bart decides to jump the Springfield gorge, but Homer learns about Bart's plan and makes him promise not to jump it. However, Bart breaks his promise and goes to jump the gorge. Before the act, though, Homer stops him just in time and gets Bart to promise that he will stop being a daredevil homer then takes Bart's place in jump and very nearly dies.