The Wicked Witch follows a clue on the silver slippers to Emerald City Clock Tower, putting all the guards in her way to sleep with a very powerful potion. But she gets more than she bargained for when she accidentally sets off every single alarm clock in the whole place and awakens the Quox, a giant silver beast slumbering beneath Emerald City! While Dorothy and friends are preoccupied with trying to deal with that thing, the witches dive deep into the tunnel the Quox came from for signs of the silver slippers. Dorothy and friends figure out the only way to deal with the beast is to put it back to sleep. And the only way to do it is by stealing the Wicked Witch's sleeping potion!