Abby and Stacy build a tree house and decide not to share it with the other Cul-de-sac Kids, even if they have to form a new all-girls club to get their way.

When Jack and Annie travel back to the Kansas prairie in search of "something to learn," they gain an understanding of how hard life was for pioneers and they experience the terror of a tornado.

Before Jack and Annie can find out, the mysterious tree house whisks them back to the prehistoric past. Now they have to figure out how to get home. Can they do it before dark...or will they become a dinosaur's dinner?

"Join Jack and Annie as they as they meet one of the world's most famous illusionists - Harry Houdini!"--

The magic tree house whisks Jack and Annie to India during the Mogul Empire in the 1600s to search for an emerald needed to break a magic spell.

The magic tree house takes Jack and Annie to San Francisco in 1906, in time for them to experience one of the biggest earthquakes the United States had ever known.

While on a mission to prove to Merlin that they can use magic wisely, Jack and Annie travel to seventeenth-century Venice, Italy, to save the city from disaster. Merlin has asked Jack and Annie to help on another Merlin Mission. This time they head back into history to Venice, Italy, in the 1700s. With the help of some new friends, a research book, and a mysterious rhyme from Merlin, the heroes will save the beautiful city from a flood! Yet another...

Joe conquers his fear of the strange creature moving into the house next door, as well as the treehouse in the creature's backyard.

A group of girls in Claire's town have noticed strange sights and sounds coming from the tree house where their club meets. Is it a rival boys club trying to scare them away? Or is it a ghost? The girls ask Claire to tackle the mystery--and Kaz hopes to finally find the rest of his missing family members!

When Little Critter's friends are too busy to join him in his new tree house, he finally asks Little Sister to play with him.