Hercules: The Legendary Journeys - Season 5 Episode 22
Revelations

The Archangel Michael was the harbinger of the apocalypse. He released the horsemen War, Famine and Pestilence upon the land. Meanwhile, the late Iolaus, who defied The Light on the other side to warn his friend of the approaching Armageddon, joined Hercules. Despite Ares help, Hercules and Iolaus could not stop the release of the final horseman, Death, whose first target was Iolaus. Determined to save his friend this time, Hercules fell with Death into a volcano. Hercules sacrifice earned the world a reprieve, and Iolaus was sent back to Earth to continue his life at Hercules side.