Four English school children find their way through the back of a wardrobe into the magic land of Narnia and assist its ruler, the golden lion Aslan, in defeating the White Witch who has cursed the land with eternal winter.

Eustace is summoned back to the magical land of Narnia with his new friend Jill. Many years have passed since Eustace's last visit. King Caspian is old and frail. The mysterious disappearance years ago of his son, Prince Rilian, has remained unsolved. Aslan the lion charges the children to embark on a perilous journey through enchanted lands of giants and witches to find Rilian and bring him home.

When Lucy and Edmund Pensive, along with their cousin Eustace, are swallowed into a painting and transported back to Narnia, they join King Caspian and a noble mouse named Reepicheep aboard the magnificent ship The Dawn Treader. The courageous voyagers travel to mysterious islands, confront mystical creatures, and reunite with the Great Lion Aslan on a mission that will determine the fate of Narnia itself!

The four Pevensie children--Peter, Susan, Edmund and Lucy--return to Narnia, only to discover that hundreds of years have passed since they ruled there. Now, crowning himself king, the evil General Miraz has taken charge. The children enlist the help of a heroic mouse called Reepicheep. They set out to find the exiled Prince Caspian, determined to see him rightfully named king.