The Chronicles of Narnia: Prince Caspian

One year after their first adventure in Narnia, the Pevensie children are magically drawn back to discover that thirteen centuries have passed and their beloved kingdom has been conquered by the Telmarines. They join forces with the rightful heir Prince Caspian, who is fleeing his murderous uncle Miraz, to rally Narnia's mythical creatures and reclaim the throne. The children and Caspian lead a desperate campaign against Miraz's army, ultimately calling upon Aslan to help them restore peace and Caspian's rightful rule.