Happy Kingdom is invaded by the T-Shirt Swapper, a nefarious villain who sneaks up on people and glues cheesy tourist t-shirts on them. When Yam Roll gets a Bun in The Over shirt stuck on him, he vows to take down the mysterious humiliator!
Yam Roll is astonished to discover that Katcho has a new, secret student that he is teaching. When Yam Roll confronts Katcho, he orders Yam Roll and the new student to go toe-to-toe in a battle of special powers.
