Jack and Annie travel to Vienna, Austria, in 1762, where they meet the young Wolfgang Amadeus Mozart and his sister and help save the budding genius' life.
Their magic tree house takes Jack and Annie back to a monastery in medieval Ireland, where they try to retrieve a lost book while being menaced by Viking raiders.
Jack and Annie travel in their magic treehouse to the year 1621, where they celebrate the first Thanksgiving with the Pilgrims and Wampanoag Indians in the New Plymouth Colony.
Eight-year-old Jack and his younger sister Annie use the magic tree house to travel back to the Middle Ages, where they explore a castle and are helped by a mysterious knight.
The magic tree house takes Jack and Annie to an African rainforest, where the siblings encounter gorillas and learn to communicate with them. Presented in English and Chinese.
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.
The magic tree house transports Jack and Annie on a mission to the Ice Age, where they encounter Cro-Magnons, cave bears, sabertooth tigers, and woolly mammoths.
The magic tree house takes Jack and Annie to a moon base in the future where they continue to search for the fourth thing they need to free their friend Morgan from the magician's spell. Presented in Chinese and English.