Peter, Susan, Edmund, and Lucy Pevensey, the heroes and heroines from The Lion, The Witch, and the Wardrobe, return in this fourth installment of C.S. Lewis' Chronicles of Narnia series. The four children are transported from an English train station to an island in the world of Narnia. Though Narnia has been at peace since the children left, it is now under the control of Wicked King Mirax. The youngsters, along with Aslan the great lion, must help young Prince Caspian restore Narnia's glorious past.