In the film, Hercules is finally a happy family man with his wife Deianeira, two young sons Aeson and Clonus, daughter Ilea and in-living centaur Nessus.
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.
As they approach, a gaseous vapor begins pouring out of the fissure and in a flash of light the two men are charred with only their bones remaining.
She defends him saying that Hercules would be faithful to her and slaps the drunk Nessus, but she starts to doubt when sees the maiden sleeping naked.
She tells Iole to leave, but Hercules says he already knew she was a Nurian maiden, but that he loves Deianeira, and would never be unfaithful to her.
As he lay dying, Nessus tells Deianeira the cloak his blood drenches is powerful and will prevent Hercules from being unfaithful.
Hercules and Iole continue their journey, discussing their past and popularly exaggerated reputations.
Iole demonstrates how her power can work for good, stopping an apparently raging man from causing a major fight by touching him and diagnosing he just burnt his mouth on hot soup.
She then stops Hercules from killing Lycastus, a young man from her village, a love interest who attacks anyone he considers a rival for the heart of Iole.
Hercules walks through the village seeing fire and destruction and dead bodies strewn on the ground.
Hercules arrives in the Underworld, where he meets Charon, whom he forces to transport him across the River Styx.
After being attacked by different monsters, Hercules meets Eryx the boxer and some other people he sent to Hades and cleverly makes them fight each other and then sees Nessus, who taunts him by showing him, via a portal, that Deianeira is dead.