The magic tree house transports Jack and Annie to the deck of the Titanic to find the mysterious gift that will free a small dog from a magic spell.

Los libros en la misteriosa casa en la copa de un árbol llevan a Jack y Annie a las vastas planicies de Africa. The magic tree house takes Jack and Annie to Africa where they meet up with wonderful wild animals, a very hungry warrior, and where they even solve a riddle.

Annie y Jack descubren una misteriosa casa en la copa de un árbol. Está llena de libros que los llevarán a través del tiempo y el espacio a los lugares más extraordinarios y peligrosos. Their magic tree house takes Jack and Annie deep into the sea, where they meet up with dolphins, sharks, and octopi as they search for the answer to an ancient riddle.

¿Es éste un pueblo fantasma?, se preguntan ambos hermanos al llegar al salvaje Oeste, donde viven aventuras con ladrones de caballos salvajes, serpientes de casacabel y un vaquero apodado "Espiga". Their magic tree house takes Jack and Annie back to the Wild West, where they experience excitement and danger and try to solve a riddle.

Their magic tree house takes Jack and Annie back to retrieve a lost story in ancient Greece, where they witness the original Olympic games and are surprised to find what girls of the time were not allowed to do.