Spartan Kalen saves Valerius, who betrays him—wife murdered, thrown from a cliff. Three years on, a slave gladiator; Valerius rules as War God, wed to Livia. Dragon blood awakens his power; he exposes the impostor. Valerius flees to beast tribes, turning monster to ravage Rome. Kalen unites Spartans, Romans and Luna's beasts; Livia dies. Awakened, he kills him, refuses the throne and goes home.
