Thundarr the Barbarian - Season 2 - Eps 7: Trial by Terror
Thundarr's friend Thorac is accused of stealing a village's fuel and is about to receive a death sentence (by being boiled alive over a geyser) when the barbarian rescues him. Thorac is granted a reprieve when Thundarr and the group investigate the crime, eventually learning the town's sheriff Korb is in league with the evil wizard Artemus. Artemus had stolen the fuel to power his Death Ship and gain the approval of the Council of Wizards.
About Thundarr the Barbarian

Title: Thundarr the Barbarian
First Air Date: 1980-10-04
Last Air Date: 1981-10-31
Status: Ended
Rating: 6.7/10 (from 24 votes)
Language: EN
Seasons: 2
Total Episodes: 21
Network: NBC
Genres: Animation, Sci-Fi & Fantasy, Action & Adventure
Production Companies: Ruby-Spears Productions
Synopsis
Thundarr and his companions Ariel and Ookla wander a devastated future Earth and fight evil wherever they find it.
Cast

Robert Ridgely
Thundarr (voice)

Henry Corden
Ookla the Mok (voice)

Nellie Bellflower
Princess Ariel (voice)

Dick Tufeld
Narrator (voice)