When the Pevensie siblings each follow their own path, they find themselves at Willy's Chocolate Factory. Walking through a wardrobe, they discover the world of Gnarnia, ruled by the White Bitch. Meeting up with characters such as Harry Potter and Captain Jack Swallows, the newly reunited family must team up with Aslo, a wise-but-horny lion to stop the White Bitch's army.

A fleet of Martian spacecraft surrounds the world's major cities and all of humanity waits to see if the extraterrestrial visitors have, as they claim, "come in peace." U.S. President James Dale receives assurance from science professor Donald Kessler that the Martians' mission is a friendly one. But when a peaceful exchange ends in the total annihilation of the U.S. Congress, military men call for a full-scale nuclear retaliation.