While running away from the housekeeper after accidentally breaking a window, the four siblings hide in the wardrobe and enter Narnia. They find out that Mr. Tumnus has already been taken by the Witch's secret police, and meet Mr. and Mrs. Beaver, who tell them about Aslan. They say that Aslan is on the move to take back Narnia from the Witch. The four must help Aslan, for there was a prophecy that if two sons of Adam and two daughters of Eve sit in the four thrones, the White Witch would no longer be able to reign.