Wrath of the Titans Description:

Perseus and his son Helius live as fishermen in a small village. One night, Zeus visits Perseus and tells that the gods are weaker since the humans do not pray to them anymore. He tells that the walls of Tartarus are falling down in the underworld and all the demons will be released on Earth and Kronos will escape from his imprisonment. Zeus goes to the underworld with Poseidon to join forces with Aries and Hades but they are betrayed and Zeus is captured.