ソドー島のノース・ウェスタン鉄道で働く機関車のトーマスとパーシー、ディーゼル、そして保線車両のカーリーとサンディーは、クリスタルの洞窟での冒険を機に5台で"大大大冒険クラブ（The Biggest Adventure Club）"を組んだ。クラブはその後アフリカ・ケニアから来たニアと高速で走る電車カナ、自閉症のブレーキ車ブルーノを迎え、必要な時には協力しながら、日々楽しく仕事や冒険を成し遂げるのであった。
きかんしゃトーマス (シーズン 4)
Sheep Stampede (エピソード 1)
放送日: 2025-01-27
上映時間: 11 min
概要: Diesel tells Nia that using her special whistle to find Farmer McColl's sheep isn't fair. So she tries not to use it, even though it is the only thing that can save the delivery.
The Berry Best (エピソード 2)
放送日: 2025-01-28
上映時間: 11 min
概要: Thomas goes too far when taking 'just a few' strawberries again and again uses up all the fruit in Farmer McColl's field.
Creepy Crawly Courage (エピソード 3)
放送日: 2025-01-29
上映時間: 11 min
概要: Yong Bao's fear of creepy crawlies and Carly's disgust for skunks complicate their apple delivery to the Harvest Festival.
Windmill Woes (エピソード 4)
放送日: 2025-01-30
上映時間: 11 min
概要: After Thomas, Percy and Diesel accidentally break a windmill, they all tell Gordon different versions of what happened. Can Gordon uncover the truth?
Quacking Quandary (エピソード 5)
放送日: 2025-01-31
上映時間: 11 min
概要: When Diesel hears a strange noise that sounds like a swamp monster, he gets too scared to pull deliveries through the area. Bruno and Percy must help conquer his fear.
The Stinking Delivery (エピソード 6)
放送日: 2025-02-03
上映時間: 11 min
概要: None of the engines want to take a super stinky compost delivery, so they make a 'hide & stink' game. But after a spill, they must work together to deliver the smelly mess.
Don't Train on My Parade (エピソード 7)
放送日: 2025-02-04
上映時間: 11 min
概要: When Sir Topham Hatt's springtime parade floral float is destroyed before delivery, Thomas and the engines find the spring in Sodor to save the parade.
Shiny Spiffy Sandy (エピソード 8)
放送日: 2025-02-05
上映時間: 11 min
概要: After the engines decide to show their best-selves by staying clean and sparkling for the Tidmouth Sheds open house, they are confronted by a sinkhole ruining the tracks.
Diesel's Bad Day (エピソード 9)
放送日: 2025-02-06
上映時間: 11 min
概要: When Diesel's bad behavior threatens to ruin a big delivery, Bruno figures out why his friend is upset and how to help.
Moo-ving Friendship (エピソード 10)
放送日: 2025-02-07
上映時間: 11 min
概要: When Diesel is tasked with chauffeuring a prize-winning cow to a competition, he makes an unlikely friend and shows her that there's more to life than winning.
Art Engines Go! (エピソード 11)
放送日: 2025-02-10
上映時間: 11 min
概要: Kana delivers a beloved sculpture, inspiring her to make her own art. She soon learns that everyone sees art very differently.
Lightening the Load (エピソード 12)
放送日: 2025-02-11
上映時間: 11 min
概要: On a hectic day, Nia volunteers to deliver a missed shipment of a new light for the lighthouse. But she soon finds herself too embarrassed to admit the delivery has been anything but light.
Baaa-tastrophe! (エピソード 13)
放送日: 2025-02-12
上映時間: 11 min
概要: When Thomas' delivery of sheep goes badly, he worries that Annie and Clarabel will think he is not good at his job.
Terence Time Out (エピソード 14)
放送日: 2025-05-11
上映時間: 11 min
概要: When Thomas and Diesel are tasked with moving multiple heavy loads to the lighthouse, they find that all the heavy lifting, sharp rocks and jagged logs leave them feeling beat up.
Postage Percy (エピソード 15)
放送日: 2025-05-11
上映時間: 11 min
概要: When Sir Topham Hatt wants to create a new stamp for Sodor, Percy is determined to help discover what the image should be.
A Crate Rescue (エピソード 16)
放送日: 2025-05-11
上映時間: 11 min
概要: When Diesel accidentally drops a wrench, he doesn't think twice to discard it where no one can see it -- until he drops and then loses his day's delivery in the water, which is overloaded with junk!
Chaos at Cronk's Crossing (エピソード 17)
放送日: 2025-05-11
上映時間: 11 min
概要: When the traffic problems become too intense at Cronk's Crossing, Sir Topham Hatt decides that the entire intersection needs to be torn out and replaced.
The Big Do-Over (エピソード 18)
放送日: 2025-05-11
上映時間: 11 min
概要: Thomas and Friends try to get the supplies to the site and get construction under way.
Did I Miss It? (エピソード 19)
放送日: 2025-05-11
上映時間: 11 min
概要: Thomas desperately wants to watch the four curves of the cloverleaf go in. But as he goes through the day, circumstances make it that he misses the first three.
No More Surprises (エピソード 20)
放送日: 2025-05-11
上映時間: 11 min
概要: When Percy is upset to find that the big construction project is not yet finished, Thomas sets out to help him through the last phases of the work with no more surprises.
Bruno to the Rescue (エピソード 21)
放送日: 2025-05-11
上映時間: 11 min
概要: When Thomas accidentally leaves behind a cargo car and Bruno is the only one around, it's up to Bruno to get it to its destination on time.
Kana's Last Minute Delivery (エピソード 22)
放送日: 2025-05-11
上映時間: 11 min
概要: When Kana puts her delivery on hold to play a game of tag, she risks not delivering it by the end of the workday day whistle.
Goodnight, Gordon (エピソード 23)
放送日: 2025-05-11
上映時間: 11 min
概要: When Thomas and his friends accidentally wake Gordon up from his nap, they make it their mission to help Gordon fall back asleep.
Cronk's Crossing Conundrum (エピソード 24)
放送日: 2025-05-11
上映時間: 11 min
概要: The new Cronk's Crossing has made deliveries on Sodor SO much easier! And fast -- super fast. So fast that Toby is having a hard time shunting all the cars needed for the deliveries.
Bridge Builders (エピソード 25)
放送日: 2025-05-11
上映時間: 11 min
概要: Sandy and Carly are attempting to fix a bridge that has collapsed so Thomas and Percy can make a big delivery.
The Feels of Sodor (エピソード 26)
放送日: 2025-05-11
上映時間: 11 min
概要: When a heavy fog settles over Sodor, Thomas has to take cruise ship passengers on a tour, but it's clear they won't SEE much on their scenic tour.
シーズン
エピソード 52
エピソード 52
エピソード 26
エピソード 26
エピソード 38