A prequel to the first two Underworld films, this fantasy explains the origins of the feud between the Vampires and the Lycans. Aided by his secret love, Sonja (Rhona Mitra), courageous Lucian (Michael Sheen) leads the Lycans in battle against brutal Vampire king Viktor (Bill Nighy). Determined to break the king's enslavement of his people, Lucian faces off against the Death Dealer army in a bid for Lycan independence.