Thomas & Friends: 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 Thomas & Friends 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
Springtime for Diesel
Sep 18, 2017 · 11 min
Diesel is always bumping into people and laughing, but when he does it to Daisy, her springs need fixing. In the Dieselworks, thinking that she is asleep, Diesel explains why he di
A Most Singular Engine
Sep 19, 2017 · 11 min
Diesel makes mischief between Daisy and Harvey by telling them both that the other is boasting of being unique. However, the two become friends while assisting each other on a job,
Dowager Hatt's Busy Day
Sep 20, 2017 · 11 min
While the Fat Controller is sick, his mother runs the railway and creates chaos by getting everyone to do the wrong jobs! Oblivious to all the mayhem, Dowager Hatt supervises the h
Stuck in Gear
Sep 21, 2017 · 11 min
A branch gets stuck in the open gears of his crane, but Harvey is too shy to ask for help. Instead, he tries to fix it himself and ends up derailing himself inside a tunnel.
Runaway Engine
Sep 22, 2017 · 11 min
Millie is given extra work around the estate and gets agitated when Stephen and Glynn forget to clear up the garden waste. When Stephen also manages to hurt her feelings, and can't
P.A. Problems
Sep 25, 2017 · 11 min
The Fat Controller splashes out on a new public address system, but the engines and passengers are struggling to hear the announcements. Holidaymakers end up at the quarry, quarry
Hasty Hannah
Sep 26, 2017 · 11 min
While Henrietta is getting her seats refurbished, Toby is given a replacement carriage named Hannah. However, she is so headstrong and reckless that Toby gets fed up with her urgin
Cranky at the End of the Line
Sep 27, 2017 · 11 min
After Cranky is teased about his age, he works twice as hard and through the night to impress the Fat Controller. But the harder he works, the more mistakes he makes. When a big, n
New Crane on the Dock
Sep 28, 2017 · 11 min
Carly the new crane is so keen that she takes on all the work. After Cranky finds himself with nothing to do, he works harder and faster in a bid to keep up with her. But as the tw
Unscheduled Stops
Sep 29, 2017 · 11 min
When Bertie breaks down while they are racing, Thomas takes on his passengers. One elderly man says that Bertie always drops him off between stops. Soon Thomas is getting requests
Phillip's Number
Oct 2, 2017 · 11 min
When he is teased about having 68 painted on his side, Philip tries to discover why he was given that number. Later, when he manages to avoid an accident after 68 sheep stray onto
The Fastest Red Engine on Sodor
Oct 3, 2017 · 11 min
When Rosie is painted red she is challenged to a race by fellow red engine James. A screeching sound leads Rosie to suggest that James should get his brakes checked, but he is too
A Shed for Edward
Oct 4, 2017 · 11 min
When Edward's shed is being repaired he is first sent to Philip's shed, then the Steamworks, then Brendam Docks, but they are all too noisy for him to get a good night's sleep!
The Big Freeze
Dec 1, 2017 · 11 min
When a big freeze hits the island of Sodor, Diesel finally proves himself to be a hero by bringing the coal for the steam engines.
Emily in the Middle
Dec 6, 2017 · 11 min
Emily gets stuck in the middle while helping Donald and Douglas, until she gets derailed at the bottom of Gordon's Hill.
Terence Breaks the Ice
Dec 11, 2017 · 11 min
Terence takes a shortcut across a frozen lake while collecting Christmas trees for the holiday market and Thomas tries to save him.
Daisy's Perfect Christmas
Dec 18, 2017 · 11 min
Daisy is sad when Christmas doesn't go as planned: the Decorating of Vicarstown, the Children, Mike, Rex, and Bert's fake snow show, the electricity problem back at Vicarstown, the
Confused Coaches
Dec 22, 2017 · 11 min
Spencer and Gordon accidentally upset their passengers when their competitive behavior gets out of hand and their coaches get mixed up before the New Year's celebration begins.