Trollz
Boyz and Girlz Together (1x24)
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With four of the girls under Simon's mind control, Ruby must enlist the help of the boys and their teacher, Mr. Trollheimer, to travel to Gremlin country and undo the power of Simon's magic. The four "bad girls" get turned back good, Simon's plan is foiled, and they all swear never to eat any more of Snarf's cookies.