"This is an episode dedicated to America's finest! And to a lesser degree, payback for every speeding ticket I've ever gotten," says host John Henson. "Wipeout" salutes 24 brave military personnel, police officers, firefighters, civil servants and everyday heroes as they face Sweeper Trees and red, white and blue Moving Big Balls. Also featured will be an American Revolution themed Spinner with a barrage of patriotic projectiles hailing from above, on this week's episode of "Wipeout," featuring the world's largest obstacle course.