Captured by the Flying Monkeys, Dorothy finds herself to be the victim of the Wicked Witch's...reality show? The Witch decides to record herself stealing the Silver Slippers and, since she can't just take them off Dorothy's feet, she has to slice them off with an over-the-top buzzsaw.
Meanwhile, the imprisoned Lion tests out his comedy chops on the Flying Monkeys, and soon he convinces them to close their eyes and give him the keys to his shackles under the guise of a magic trick. He manages to save Dorothy, who prepares to fight the Witch in a diva-off. Suddenly, we cut to...Quentin Tarantino?
Now we break the fourth wall?
He had fun.
After everyone is patched up, the whole gang returns to the Emerald City and demands to see the Wizard. They barge in without the magic green glasses and find that the Wizard's lair is a lot less impressive than it originally seemed. In fact, it's just made of undecorated plywood. They discover the "Wizard" hiding in a control module in the center and find that the Wizard is simply Jeffrey Tambor.
I've made a huge mistake.
Yeah...this'll work out great.