Hercules the Legendary Journeys, Vol. 4: In the Underworld

Having married Deianeira (Kitaen), Herc's a pretty happy guy until a mysterious maiden, Iole, comes to him for help. Seems a deadly crack has opened up in the earth and is swallowing villagers. But Iole has actually been sent by Hera to destroy Hercules and when Deianeira discovers her treachery she goes to warn her husband. Only Hera manages to trick her into walking off a clift and falling to her death. Hercules must go into the underworld to save the world from Hera but when he learns Deianeira's fate, he accepts an impossible challenge from Hades (Ferguson) to bring his wife back to life.