In Lord of the Rings: War of the Rohirrim, set 250 years before the original trilogy, the story follows Helm Hammerhand, the legendary King of Rohan, voiced by Brian Cox. As Wulf, a vengeful Dunlending lord, attacks, Helm and his daughter Héra must defend their people at the Hornburg, the future Helm's Deep. This animated epic explores themes of courage, legacy, and sacrifice, revealing the origins of Rohan's most iconic stronghold.