Arthur: Season 21
Season 21 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Picks up essential narrative continuity directly following the events of Arthur Season 20.
- Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
- Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
- Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
Episode Guide
Season 21 Progress Shield
Binky's A Game
Oct 24, 2017 · 13 min
Binky gets an A on a test and Muffy and Francine think he cheated.
Brain and the Time Capsule
Oct 24, 2017 · 13 min
Brain creates a time capsule but soon he gets frustrated when everyone wants to put something in.
The Master Builders
Oct 24, 2017 · 26 min
Buster keeps failing at creating a birdhouse to keep the community safe while Muffy and Francine come up with a new company named "Skywire" and attempt to create a cat toy.
Francine and the Soccer Spy
Oct 26, 2017 · 13 min
Ladonna befriends a member of the Mighty Mountain soccer team.
Sue Ellen and the Last Page
Oct 26, 2017 · 13 min
The City Council votes to close down the Elwood City Library and Sue Ellen attempts to save it.
Muffy Misses Out
Feb 12, 2018 · 13 min
Muffy goes to an opera but is also worrying that the members of Mrs. McGrady's bake sale will need her help.
Arthur Takes a Stand
Feb 12, 2018 · 13 min
Arthur discovers that Mrs. McGrady manages the cafeteria without any help and tries to hire her an assistant.
Slink's Special Talent
Feb 13, 2018 · 13 min
Slink thinks that his special talent is being a newspaper boy.
The Lost Dinosaur
Feb 14, 2018 · 13 min
Bud loses his imaginary friend Rapty, a dinosaur, and becomes worried what he'll do without him.
The Princess Problem
Feb 14, 2018 · 13 min
D.W. and Emily tell a student the story of a princess and have a substitute teacher for PE.
Invasion of the Soccer Fans
Feb 15, 2018 · 13 min
D.W., Arthur, Vicita, Mr. Read, Grandma Thora, and Vicita's father watch a soccer game on TV and Baby Kate becomes addicted to it.
Pal and the Big Itch
Feb 15, 2018 · 13 min
When Pal goes into a trash can and rolls in the garbage, he gets an itch.