All over the world, the fires are dying. The planet will become an icy wilderness. Mankind is threatened with extinction. At the heart of this fiendish plot lies Hera, Queen of the Gods and Hercules' implacable enemy, who has taken the eternal torch before it is extinguished. Many dangers lay in wait: an invicible giant, a treacherous wood sprite and the wrath and jealousy of his father: Zeus, king of the gods. But Hercules must not fail; if the Eternal Torch dies, all life dies with it.

When villagers begin disappearing it is discovered that they had fallen through a crack in the earth which goes straight to Hades. Hercules, once again comes to the rescue and faces one of his most difficult challenges, and must prove himself as a man as well as a god.

Hercules has settled down with his wife and children, but misses the good old days traveling around having exciting adventures. Then one day he is persuaded out of his farming "retirement" to help a distant village which is being attacked by an unseen monster.

After Hercules and his friend Iolaus stopped a band of hoodlums from robbing an innkeeper, Hercules went home to his family. The horror that followed was over almost before it started. A huge ball of fire burst through his bedroom window and consumed his wife, Deianeira. In the next instant the fireball took Hercules' three young children. His step mother, Hera, was to blame. Consumed by hatred, Hercules set out on a path of destruction. But the beautiful slave girl Aegina helped Hercules overcome his grief and set him back on an honorable path.

Hercules volunteers to help a woman show her new son to her husband, being kept as a slave. He and Iolaus arrange to be captured to free Gladius and all the other slaves.

When Persephone, the daughter of Demeter is abducted by Hades, Hercules travels to the Underworld to rescue her. While there, he briefly reunites with his family.

Hercules asks Serena to marry him. But Ares is still manipulating the situation and, determined to destroy the pair's relationship, makes Hercules a deal - Serena's hand in return for Hercules giving up his godly powers.