Den heroiske halvguden Perseus reiser inn i Hades for å bekjempe Titanene, fiender av gudene, som har planlagt å ta Zeus til fange i underverdenen.

At an academy for mythological warriors, 17-year-old Hercules meets Jason, the next in line to rule Corinth. When Jason discovers that his father is ill, Hercules decides to seek out the Golden Fleece that could cure him. But limitations to his powers, as well as his half-brother Ares, stand in his way.