Element skates a real tank with Louie while Zion gets a very special surprise on P-Stone day. Foundation's run in San Francisco ends with a stomach-turning prank on Nick.

The trip gets medieval when the teams arrive at a bizarre dirtboard racetrack. Andy turns demonic and Evan eats a dog turd. The Mystery Guests arrive and start stacking points.

The teams jock out, trying their hand at normal sports. Bam Margera arrives to help Element skate a coffin, Merlino loses a butt cheek and a Jaws stunt ends in the worst injury yet.