On the way back from a school field trip to the History of Magic Museum, Rock's jealousy of the girls' magic starts a foolish fight. After Ruby's anti-Rock spell ends up shutting down both the bus and Mr. Slate, the Trollz are stranded in the woods with only ravenous Ghost Dogs for company! The boys must leave their jealousy behind and cooperate to get the magic school bus moving again. The wheels on the bus...