While secretly playing with Bobbie Blobby and Sarge Charge, Luka switches their heads; the two Power Players have to make do with their new bodies to help Action Axel fight Porcupunk.

After hearing the story of King Arthur, the heroes play at being Knights of the Round Table with Axel in the role of king; when Axel's sword gets stuck in a stone, he begins to doubt if he really is the right person to lead the Power Players.