Hercules - Season 1 - Eps 19: Hercules and the Underworld Takeover
The Queen of the Night, Hecate, plots to overthrow Hades and take over the Underworld, ousting Pain and Panic in the process. The two minions turn to Hercules for help, and convince him to restore Hades back on his throne - Hades being, after all, the lesser of two evils.
About Hercules

Title: Hercules
First Air Date: 1998-08-31
Last Air Date: 1999-03-01
Status: Ended
Rating: 6.8/10 (from 297 votes)
Language: EN
Seasons: 1
Total Episodes: 65
Network: Syndication ABC
Genres: Comedy, Kids, Animation, Action & Adventure
Production Companies: Disney Television Animation
Synopsis
Follow Herc's many labors during the years he spent training on how to be a hero under the tutelage of satyr Phil. Many of the Olympian Gods and Goddesses pay visit to the young hero-to-be and help or hinder him in his new adventures.
Cast

Tate Donovan
Hercules (voice)

French Stewart
Icarus (voice)

Sandra Bernhard
Cassandra (voice)

James Woods
Hades (voice)

Robert Costanzo
Philoctetes (voice)

Robert Stack
Bob (voice)

Diedrich Bader
Adonis (voice)

Matt Frewer
Panic (voice)

Corey Burton
Zeus (voice)

Frank Welker
Pegasus (voice)