Ten years after her happily ever after, Giselle, Robert, and Morgan move to a new house in the suburb of Monroeville with their newest addition. The community is overseen by Malvina Monroe, who has nefarious intentions for the family. When problems arise, Giselle wishes that their lives were the perfect fairy-tale. The spell backfires, with Giselle rushing to save her family and her homeland of the Kingdom of Andalasia before the clock strikes midnight.

With the Wicked Witch of the West now vanquished from Oz, Tom and Jerry along with Dorothy are back in Kansas! But not for long as an all-new villain has surfaced from beneath the magical land, the Gnome King! Having captured the Good Witch, the Gnome King and his army are wreaking havoc throughout Oz and need but one item to take control of The Emerald City, Dorothy's ruby slippers! It's up to our favorite cat and mouse duo to team up, go Back to Oz and save the land they love. Take to the...