A celebrity edition features Tempestt Bledsoe, Leif Garrett, Arianne Zuker, John Melendez, Traci Bingham, Todd Bridges and Brande Roderick playing for $50,000. Among the stunts: getting dunked in water while hanging upside down; enduring electric shocks in a foul-smelling isolation pod that's infested with maggots; and completing a complex (and dangerous) driving task.