After defeating the Titans, the Gods divided the world among themselves; Zeus took the skies, Poseidon the seas, and Hades, tricked by Zeus, was left with the Underworld. The Gods created the mortals, whose worship maintained the God�s immortality. Over time, however, the mortals begin to question and resist their creators. King Acrisius leads an assault on Mount Olympus itself. Zeus disguises himself as Acrisius and sleeps with his queen, Danae, who conceives and bears a son, Perseus. Angered, Acrisius has Danae and Perseus locked in a chest and thrown into the ocean. Zeus punishes Acrisius by transforming him into the deformed creature Calibos.
A fisherman named Spyros hauls the chest out of the sea and finds baby Perseus and his now-dead mother. Spyros and his wife raise Perseus as their own son. Years later, an adult Perseus and his family watch as soldiers from the city of Argos destroy the statue of Zeus, declaring war on the Gods; the Furies are then unleashed on them. Hades appears and destroys the family's fishing vessel; Spyros and his family drown, with Perseus as the only survivor.
Found by another group of soldiers, Perseus is brought before King Cepheus and Queen Cassiopeia, celebrating their campaign against the gods. Queen Cassiopeia boasts that her daughter Andromeda�s beauty is greater than Aphrodite. The revelry is interrupted by Hades, whom Zeus has given leave to punish the mortals for their defiance. Hades threatens to unleash his monster, the Kraken, against Argos, unless Andromeda is offered as a sacrifice. Before leaving, he also reveals that Perseus is the demigod son of Zeus. Perseus meets Io, a mysterious woman cursed with agelessness, who confirms his origin.
Perseus, Io, and the King's Guard journey to the Stygian Witches, seeking a way to defeat the Kraken. To help his son, Zeus gives Perseus a sword forged on Olympus. Perseus refuses it, but the captain of the guard, Draco, keeps it. Soon after, they are attacked by Calibos. Draco severs Calibos's hand, forcing him to flee. The group gives chase but Calibos�s hand and drops of his blood transform into giant scorpions. They are saved by a band of Djinn, non-human desert sorcerers, who tame the remaining scorpions. Also wishing for the Gods' defeat, the Djinn lend their aid to Perseus and his band. As they continue to travel, Io aids and teaches Perseus and they begin to fall in love.
