Plot: After watching Jackass, Peter and his friends decide to film their own highly dangerous stunts just like the show. In one stunt, Peter attempts to jump a lake in his Greatest American Hero costume but instead crashes into a tree, causing him to fall into a lake and rendering him incapacitated. Brian swims out to save him from drowning, but strains his back during the rescue, leaving him stranded in the water along with Peter. Joe then saves them both.