The Simpsons - Season 21 - Eps 17: American History X-cellent
When the police are called to diffuse a rowdy crowd at Mr. Burns' estate, one of the officers recognizes priceless stolen paintings on the walls, and the maniacal billionaire is taken downtown for questioning. With Mr. Burns gone, Smithers takes charge of the power plant. But when employees take advantage of his good nature, he exacts revenge by forcing the employees to work night and day. These unfair working conditions prompt Homer and his crew to devise a plan to bust out Mr. Burns.
About The Simpsons

Title: The Simpsons
First Air Date: 1989-12-17
Last Air Date: 2025-04-13
Status: Returning Series
Rating: 8.016/10 (from 10160 votes)
Language: EN
Seasons: 37
Total Episodes: 785
Network: FOX
Genres: Family, Animation, Comedy
Production Companies: Gracie Films, 20th Century Fox Television, 20th Television Animation, 20th Television
Synopsis
Set in Springfield, the average American town, the show focuses on the antics and everyday adventures of the Simpson family; Homer, Marge, Bart, Lisa and Maggie, as well as a virtual cast of thousands. Since the beginning, the series has been a pop culture icon, attracting hundreds of celebrities to guest star. The show has also made name for itself in its fearless satirical take on politics, media and American life in general.
Cast

Dan Castellaneta
Homer Simpson / Abe Simpson / Barney Gumble / Krusty (voice)

Julie Kavner
Marge Simpson / Patty Bouvier / Selma Bouvier (voice)

Nancy Cartwright
Bart Simpson / Nelson Muntz / Ralph Wiggum (voice)

Yeardley Smith
Lisa Simpson (voice)

Hank Azaria
Moe Szyslak / Chief Wiggum / Apu / Comic Book Guy / Carl (voice)

Harry Shearer
Ned Flanders / Mr. Burns / Smithers / Skinner / Lenny (voice)