Get ready to rumble as Todd Bridges, Tonya Harding and the rest of our celebrity cast take on 20 of the World's Dumbest Brawlers. Girl-on-girl catfights, a snowboarders vs skiers showdown, and rush hour fisticuffs in the middle of a busy highway. Plus Danny Bonaduce's return to the boxing ring, and Jack Nicholson's return to assaulting paparazzi.