perseus arrives at argos and, with medusa's severed head, turns the kraken to stone before it can reach andromeda. the beast crumbles into pieces and its hand falls on prokopion (luke treadaway), the insane leader of cult of hades, and cepheus, who was injured fighting prokopion, and the two men are crushed to death. hades appears, with the intent of killing perseus, but perseus, calling upon zeus, throws his sword at hades and he is banished into the underworld. andromeda is rescued by perseus and she is crowned the queen of argos. perseus declines her offer to rule with her as king and he also refuses another chance at immortality from zeus, who then proclaims that if he chooses to be mortal, he should not live alone, and brings io back to life.