The magic tree house takes Jack and Annie on a thrilling, futuristic adventure to the Moon in the year 2031. They are tasked with finding the final rhyming couplet to complete their mission from Morgan le Fay. They experience the wonder of floating in low gravity and explore a moon base and the lunar surface in specialized space suits. They find a mysterious note that leads them on a hunt across the desolate, crater-filled landscape. The adventure turns into a race against time when they must figure out how to get back to the tree house before their oxygen supplies are completely depleted. They rely on their scientific knowledge and Jack’s research book to solve the puzzle, making this a true, high-stakes space adventure before their triumphant return to Earth.