The one-eyed giant: When Odysseus leaves his home to fight in the Trojan War, he never imagines that he'll be away from his family for so many years. Now he is leading his men across the seas. Among the dangers that await them is Polyphemus, the one-eyed giant. The land of the dead: The curse of Polyphemus plagues them at every turn while Odysseus and his men face giant cannibals and outwit a beautiful witch, who reveals Odysseus's next challenge--...

Eight-year-old Jack and his younger sister Annie find a magic treehouse, which whisks them back to an ancient time zone where they see live dinosaurs.

Jack and Annie experience a series of time-travel adventures. (Dolphins at daybreak) It's sink or swim for Jack and Annie when the magic tree house whisks them off to the middle of the ocean. (Ghost town at sundown) "Is this town haunted?" Jack and Annie wonder when the magic tree house takes them to the Wild Wild West. (Lions at lunchtime) "Where are the lions?" Jack wonders when the magic tree house whisks him and his sister to the vast plains of...

Jack and Annie go on a series of missions in order to help the wizard Merlin, traveling to such places as Japan, Antarctica, New Orleans, and Ireland.

The magic tree house is back with a message from Morgan le Fay telling Jack and Annie to seek out "The Gray Ghost" and listen to her story, and immediately they are whisked away to Nepal where they meet Tenzin, a climber who has recently lost his family, and who takes them up the mountain to meet a snow leopard and renew himself.