On Christmas Eve, Jack and Annie's tree house transports them to King Arthur's castle at Camelot, where they undertake a quest to the castle of the Otherworld.

A tree, timber, tools, a rope of twisted twine all all things you need to build a treehouse--but most of all you need time and imagination.

"With ladders, swings, turrets, and elaborate pulley systems everywhere--animals chase one another over, under, around, and through the tree house that Jack has built. Then the bell rings, and all the animals gather for story time with Jack"--

"In the fort in the woods, a prince is preparing his castle for a lively feast for the royal kingdom. Unbeknownst to him, a pirate uses the same fort as her ship, planning to venture out to the open seas in search of treasure. But when a treasure map appears on the prince's party invitations, and the pirate finds that her sword has turned into a scepter, they realize there is an intruder in the castle--no, ship! Soon, a battle over the fort between...