Eruptor discovers he has the Sherlock Holmes-like ability to figure out who's guilty of committing evil deeds.

When Skull decides to break away from Hex, Hex turns evil and tries to transform the others at the Academy into zombie-like drones.

Pop Fizz is arrested and put on trial for committing robberies all over the Skylands, and the other Skylanders have to help find the real culprit.