Abby, her two friends Robin and Frankie, and the annoying Penny, are in their treehouse arguing about what to do for their special school project when a tornado appears out of nowhere, scoops up the treehouse, and transports them all to the land of Oz, where they are soon confronted by Wicked Witch of the East (who is very much alive, and rather angry), and must save a story that is going completely sideways--all because of the evil Gluck.

When Lady Gretchen is abducted by the werelion Prince Lucas, Drew and his friends embark on a perilous chase to stop the prince from fleeing with her, but as they encounter terrifying new werelords, Drew must summon all his courage and strength to defeat the creatures.