The Feud of Faxanadu - S2.E8

While playing football, the N Team warps to Faxanadu, which is the home of two races: the Elves and the Dwarves. While trying to get back home, Kevin and Simon decide it would be more fun to see who gets back home faster, so they divide into teams. Each team is led to believe that the Elves or the Dwarves stole a powerful crystal from the other race. Only Lana has enough sense to know that the others are behaving like little kids. Then, a being known as The Evil One gets the crystal. With it, he plans to destroy Faxanadu. Only when everyone works together are they able to overcome the power of the crystal. The crystal is destroyed, and The Evil One vows to return.