When Edward, Peter, Lucy and Susan each follow their own path, they end up finding themselves at Willy's Chocolate factory. Walking through a wardrobe, they discover the world of Gnarnia, which is 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.

The close-knit Walker family deals with struggles and triumphs.