Gordon's coupler is damaged while pulling a long line of recycling cars to the Recycling Plant, Thomas and Diesel both pull the train in a contest. Thomas gave up winning the contest to keep his promise to Gordon.

It's rocket launch day and all the trains get to help deliver the big rocket parts, but when Thomas is assigned a tiny part, he puts it off to help the others with their more exciting parts.

When Percy has to deliver a new light bulb to the lighthouse at night, Thomas suggests playing secret agents along the way to help Percy forget about his fear of the dark.

When Thomas builds an obstacle course for his friends, he gets upset when they won't play with it his way.

Thomas volunteers to get Annie and Clarabel across Sodor without waking them up, only to discover that it's going to be harder than he imagined.

When Kana's power goes out during a delivery run, Thomas teaches her that sometimes it's okay to go slow.

It's Thomas's job to deliver a giant wooden dragon at the Medieval Faire at Kirk Ronan. The other engines want a turn, so they all compete to catch the dragon, pretending to be knights, thinking whoever catches it will get to deliver it.

When Thomas finds a treasure map, he creates The Big Adventure Club to seek the treasure. Sandy wants to join but Thomas says she's too little, so Sandy forms her own club.

When Thomas borrows Percy's lucky bell for a dangerous delivery, Thomas accidentally loses the bell.

When Sandy learns about a massive shipment of sand that needs to be delivered, she is determined to help despite her size.

When the trains must deliver in pairs, Thomas is disappointed to be paired with Diesel instead of his BFF Percy.

Thomas and Percy volunteer to deliver a herd of cows, but the cows keep wandering off on their own adventures.

When music-lover Nia gets stranded before a big concert she's been waiting to see, Thomas brings the concert to her.

Thomas misunderstands the Backwards Day game and accidentally delivers the wrong cargo to the wrong places.

Thomas and Kana get muddy while playing in the rain. When the rain suddenly stops and discloses a rainbow, an excited Thomas and Kana race to find the end of the rainbow.

When a parade balloon Nia is set to deliver flies away, Thomas helps Nia adjust her plans to get it back.

When Percy loses Nia's parade flag before the big parade, Thomas helps them search for it before the event begins.

Kana is upset when she keeps running out of power, but a mystery scavenger hunt is just the thing to cheer her up.

Thomas pretends to be a hero to help ensure the movie screen Nia's delivering arrives clean and pristine.

Percy feels anxious about spending a night away from home during an overnight delivery with Thomas and Nia.

When Thomas and Percy's plan to surprise Diesel goes awry, the two friends still manage to cheer up Diesel... just not in the way they expected.

When Thomas helps Nia make a delivery to the beach in Norramby, he insists he knows a shortcut and leads the way. It turns out, however, his memory isn't as good as he thought.

When all the trains but Thomas get deliveries, he's left to spend the day alone. With the help of an old boxcar and a battered beachball, however, an adventure unfolds.

When Thomas' No.1 gets covered by paint, Diesel's comment about Thomas not being number one any more causes him to doubt himself.

The engines look forward to the roller-coaster at the Vicarstown Carnival, all except for Percy, that is, who's a bit afraid.

Thomas is so excited to show Annie and Clarabel's passengers the scenic views of Sodor, but then the power goes out all over the island.

When Yong Bao visits Sodor, a jealous Thomas sets out to prove he's the braver train and challenges Yong Bao to a series of bravery challenges, only to have his plan backfire as the two end up trapped in the Old Mine.

Thomas and Percy think they're great communicators, but when they're tasked with delivering a submarine to Vicarstown, communication becomes a bit more difficult… to say the least!

Thomas and Percy have a difficult delivery, they must take eggs and other cake ingredients safely to Vicarstown for their bake-off.

When the engines are delivering attractions to the annual Harwick Beach Carnival, a series of mistakes causes the precious Calliope to break; luckily, the engines come up with a creative solution.

Thomas and the other engines are enlisted to deliver some newly discovered dinosaur bones, but they must deliver them in the correct order for assembly, which isn't as easy as it sounds.

When Gordon is unable to make an important delivery on his own, Thomas offers his help, but Gordon insists on second-guessing Thomas's every move.

When Thomas accidentally breaks a light he's hauling to the Sodor Festival of Lights, he learns the best way to be the No. 1 engine is to be honest after making a mistake.

Thomas needs repainting and must be patient as he dries, even though he feels like he's missing out.

Nia shows Thomas and Diesel how much unique beauty exists in Sodor, which comes in handy when they need plants to beautify a Plaza in Vicarstown.

When Thomas's whistle suddenly stops working, he learns that he doesn't need his whistle to still be himself.

When Thomas and Percy get into their first big fight they're afraid that their friendship is over... until Nia helps them figure out how to resolve it.

Nia has volunteered for a big day of deliveries and is determined to make the perfect plan to get it done, but when things start to go awry, she doggedly sticks to her plan and refuses any help.

On the last day of Yong Bao's visit to Sodor, his friends dig up a giant keepsake to help him remember them.

When a big storm approaches, Thomas and company must complete a week's worth of deliveries by the end of the workday, but when Sandy needs repairs, Thomas and the gang realise just how important Sandy is to the team.

While the trains are setting up for the Vicarstown Fall Festival, Thomas is feeling down about the end of summer and the changing weather.

Thomas rolls along to help Percy face his fears when he must deliver the mail on Halloween, when everyone knows the legendary Ghost Train appears.

When Thomas throws away Diesel's favourite oil can thinking it's trash, he makes a promise to get it back and, in the process, learns it's better not to touch things that aren't yours.

While playing hide and seek with Percy, Diesel accidentally gets stranded on a barge that floats out to sea.

Thomas and Diesel take a friendly competition too far and put an important delivery rescue at risk as they race across Sodor.

Percy announces he's giving up his Ghost Scaring Machine as he's too old for it now. It soon becomes clear that the machine is good for more than just scaring ghosts.

Thomas is elated when he finds a cowbell on the side of the tracks, until his friends start hogging it.

When Sir Topham Hatt's Hat blows away in the wind before making an important announcement, Thomas and his friends race around Sodor, trying to catch it. The Hat remains out of reach until they learn to work together.

Nia is planning a big party to celebrate the anniversary of her arrival on Sodor, but she finds that her friends don't remember her anniversary and are too busy to even talk about it.

When Thomas spends the day carrying rockstar idol Harold across Sodor, he gains a new perspective on just how amazing it is to be his engine-self.

When Skiff gets a crack in his hull, Thomas needs to move him overland to Harwick for repairs, but Skiff's land-sickness makes that challenging.

When Nia suggests adding a song to spice up Sir Topham Hatt's new bench unveiling, he calls upon her to write a song for the ceremony, but Nia soon finds she may have bitten off more than she can sing.

On their way to a celebration for Thomas' 10,000th delivery, Percy tries to help Thomas with his big speech, but Thomas fails to listen. While distracted, Thomas doesn't notice when Percy falls off the track and gets lost. Percy tries unsuccessfully to find his way to familiar terrain.

When Bruno comes along to help Diesel get a heavy load to the Lighthouse, Bruno tries suggesting a safer route, but Diesel doesn't wait long enough to listen to him.

While Kana and Thomas deliver aquarium materials for the Vicarstown Fish Day, it's up to steady Percy and Nia to deliver the fish themselves.

When Ashima is set to arrive on Sodor, Thomas and his friends attempt to go the extra mile in order to make the island seem fantastic! Thomas plans an extraordinary welcome that includes a tiger, painted dock, and big dance number. But when the spectacular plan gets ruined at every turn, the friends imperfect welcome still makes Ashima's arrival extra special.

The engines are revved up for their homemade obstacle course event known as the Tri-and-a-half-a-lon. During practice, Nia worries that she's never been able to beat the timer, but Sandy and Carly encourage her to keep practicing before the event the next day.

When Carly gets a new magnet to help Tess the Troublesome Crane load up a shipment of metal crates, she struggles with the new tool. Carly is frustrated that she's making mistakes during the job. Sandy and Thomas reassure Carly that she needs give herself time to be bad at it.

After Percy gets in an accident and ends up with a broken axle, Nia temporarily takes over his mail delivery duties for him - and her mail delivery is even quicker! Percy thinks the replacement is permanent.

Thomas and Percy are excited to deliver a special balloon for the hot-air balloon festival, but the balloon is wrapped up tight. They're instructed not to peek at it until they arrive. While making the delivery, part of the balloon pops out of its tarp and the wind carries it skyward, along with Percy.

Carly has developed a terrible squeak, and Sandy finds an oil can to give her a feel-good surprise, but when she tries to make the fix bigger and bigger, she creates a wacky robot oil can squirter.

After a huge storm hits the Island of Sodor, the power gets cut out. Thomas is tasked to deliver the generator to Knapford Station without getting stuck, but chooses to not get help from any of his friends.

Thomas and Percy explore a brand-new track the evening before the route is opened. Everything seems new and exciting, and even a night spent stuck in the mud turns into a wonderful experience.

On Sodor Clean-Up Day, the engines all head to Norramby to help pick up, but when the mysterious Stink Monster takes Percy, the engines must work together to save him.

With the holidays just around the corner, Thomas and Percy are determined to deliver the mail to all the patrons of Sodor.

It's Christmas time in Sodor and every engine is excitedly preparing for the holiday, especially Bruno who is excited to put his star on the tree. It's his tradition! When the Christmas tree can't be delivered, Thomas and Percy learn why traditions are important to Bruno.

While out on a delivery to Whiff's Recycling Plant with his beloved buddy Boxy in tow, Thomas realises that his pal is on his last crooked axle.

Ashima discovers that she has to prove to the others that she's more than meets the eye.

When Thomas is assigned to guide Diesel and Percy on their deliveries in case of snow, he must learn that he needs to use his plow responsibly for his friends and their tasks!

When Gordon leaves Thomas in charge for the day, Thomas sees it as his chance to prove what a good leader he is.

When Kana wants some alone time to herself, her friends misunderstand and think that she is upset about something.

After Thomas is sprayed by a skunk, he finds it hard to make a very important delivery to Vicarstown.

Whiff tasks Nia with getting an Earth themed ball to Norramby Beach. But everywhere Nia goes, something is always wrong, forcing her to make drastic changes in her plan.

Diesel is upset about constantly getting boring jobs, so Kenji offers to switch places with him for the day. But the results are disastrous!

It's Valentine's Day and no one on Sodor is happier than Percy - he gets to deliver everyone's gifts to their friends throughout the island!

As the other engines prepare for a Valentine's Day party, Kana is worried: she doesn't know what to bring!

When Carly does not return from saving Emily from an accidental derailing, a worried Sandy recruits the help of a bored Diesel to find her best gal pal.

When he accidentally causes all the lamp posts in Vicarstown to fall and shatter, an embarrassed Sir Topham Hatt requests Thomas to go on a secret mission to Harwick for replacements in time for the evening concert.

After yet another victorious race, Kana seems unbeatable! No engine on the island is as fast as Kana! However, this does not stop Sandy from challenging the electric engine. Everyone is sure Kana will win again. Sandy picks the route for the race, using her smarts and her small stature to her advantage!

When a precious marble statue of his great-grandfather arrives, Sir Topham Hatt enlists the help of Thomas and Bruno in delivering it to Vicarstown Plaza. During their journey, Thomas disregards Bruno's suggestions by doing what he thinks is best -- but his actions cause the statue's top hat to begin to crack!

When Salty the Diesel Engine returns from his worldly travels, he sings a shanty to Thomas and Percy about a legendary treasure lost on the Island of Sodor. The two friends are eager to see if the legend is true, but their journey comes to a snag when the rest of the Biggest Adventure Club refuses to join.

On a particularly blustery Balloon Festival day, Thomas is tasked with retrieving any balloons that start to drift away. When the Kraken-shaped balloon soars off, the chase is on!

Thomas learns that the rocket he helped deliver is finally falling back to Earth, into the ocean outside Sodor. Bulstrode, Carly, and their team of retrieval experts are on the job to fish the rocket out of the water, and Thomas wants to help!

After Sir Topham Hatt messes up his instructions for Kenji's passenger delivery, Thomas is asked to set things right! However, as Thomas follows Kenji's trail, he repeatedly forgets to ask his friends for specific directions, preventing him from catching up to the speedy electric engine. Realizing he has to pay more attention to details, Thomas uses his wits, listening skills, and the help of his friends to make it to Kenji and get the passengers to their destinations on time.

A rough night's sleep and a cancelled beach day puts Thomas in the grumpiest of moods. Encountering Riff and Jiff with their usual happy-go-lucky attitudes, Thomas comes to the conclusion that he'll only be liked when he appears happy. He puts on a fake smile for the rest of the day, but his words don't match his demeanor and everyone can see right through him. Finally, Thomas comes across Riff and Jiff again, who reveal they're also upset about the cruddy day!

Thomas gets help from Terence the Tractor and Carly to assemble all hay bales. Carly and Terence manage to get everything together quickly, but soon Terence purposefully crashes into the hay bales sending loose hay all over the place! Carly is shocked and confused. They turn the hay-bale stacking into a game, forming all kinds of structures Terence can crash into. Thomas worries they won't have enough time to complete the delivery.

After Gordon tells all the young engines that they have a day off to relax, Thomas and Diesel insist on a teamed relay race through the obstacle course. Percy is the only one who isn't interested in playing, so Thomas asks him to referee instead. He reluctantly agrees and the race is on! Coming to a split-second finish, Percy determines Thomas' team wins, but Diesel doesn't accept and calls for a rematch. Once again the teams race and Diesel wins after accidentally causing an oil spill. Both teams become so angry with each other, they're too distracted when Percy runs off to chase butterflies. Thomas, Diesel, and friends finally notice Percy's absence and speed after him, but they'll need to learn their lesson about sportsmanship if they want to ensure this day off is a success.

When Thomas and Percy must transport an unlucky boxcar of bananas, Thomas seems to have bad luck. Percy's positive attitude helps Thomas see the luck in each scenario, breaking the myth of the curse for a successful delivery.

Nia is nervous about working with Tess, the fastest -- and bossiest -- crane on Sodor! When Nia's plan for a safe and speedy delivery goes awry and causes Tess' wheels to clog with sand, they recruit handy Sandy to solve their problem. Luckily, Sandy has a new invention to get Tess up and going again: a tanker full of her Super-Slick Easy-Greasy Crane Grease! However, chaos continues to ensue when Nia gets stuck in the mud and the runaway grease spills all over Sodor! In the midst of the madness, Nia learns how to fix her original plan and save Sodor from slipping and sliding!

It is a special day for Harold -- the Northern Lights will shimmer over Sodor at sunset! He cannot wait to share this moment with his engine friends on Lookout Mountain. However, Thomas and the gang have a busy day ahead of them, which is impacted by damage to the Sodor Suspension Bridge. Carly and Sandy warn the excited engines that they should only cross the bridge in case of an emergency -- a rule that is ignored by Kana, Diesel, Nia, AND Thomas! When the bridge finally collapses and prevents them from reaching Lookout Mountain in time, Harold selflessly chooses to help his friends instead of see the Lights. His sacrifice teaches the young engines an important lesson: your actions add up - stay away until it is safe to play.

Bruno is beyond delighted -- he has received the gift of an updated map of Sodor from Sir Topham Hatt! He and Thomas can't wait to use it to navigate their busy schedule for the day. But when Kana's speedy whoosh blows Bruno's beloved map up, up, and away, Thomas and Bruno team up with Percy and Diesel to recover it! While searching the island far and wide for Bruno's prized possession, the gang discovers that there is something more important than keeping their schedules -- their friendship!

After a near-collision rattles their wheels, Percy and Kana enlist the help of Emily to introduce new safety measures all over Sodor. However, their anxiousness about accidents push Percy and Kana to ridiculous extremes that only makes more trouble! When Percy has another accident caused by his off-the-rails safety obsession, he refuses to leave Tidmouth Sheds. When he has to leap into action to help his friends, Percy learns that paying attention to your surroundings is the best way to not have an accident.

When Bulstrode excitedly announces that he is getting a brand new paint job on the Mainland, everyone is thrilled for him -- except for a crankier-than-usual Cranky. When the crane's dismissive comments upset Bulstrode, the tugboat storms off, leaving Thomas and Percy to pick up the pieces, repair their friendship, and encourage both of them to do something they have never done before -- talk about their true feelings towards each other!

Gordon has a day-long assignment for Thomas and the Troublesome Trucks -- they have to transport delivery after delivery to Vicarstown! The Troublesome Trucks are less than enthused -- this "sameroo" job will bore them out of their bolts! The Number One Engine is determined to make the day "amazeroo" for them and does his best to turn their repeated route into a new adventure! After their game of "Switcheroo" gets them lost, Thomas and the Troublesome Trucks learn that routine is not necessarily a bad thing -- in fact, it can be very helpful!

When Percy is accidentally doused in blue paint, he gets the opportunity to be Thomas for a day.

They get a Super Axle.

When an important shipment is delayed, Bruno and the gang have to learn the great value of waiting patiently.

When water lines break all over Sodor, the engines chug into action to deliver repair parts. But engines are not what this problem needs, it needs off-track thinking and the help of Skiff and Terence.

Thomas has been playing hard with Boxy, certain that his beloved friend/co-worker/toy will last forever. But when Thomas' careless behaviour leads to Boxy's being broken beyond repair, Thomas must confront his own behaviour.

It's a beautiful summer day on Sodor and Sir Topham Hatt has a surprise: a special plaque with a map of the island atop Lookout Mountain! Sir Topham Hatt recruits the engines to lead "The Sight of Sodor" tour: to the plaque and back, missing all of the real tourist attractions! The engines are not enthusiastic about Sir Topham Hatt's attraction -- and neither are the island's visitors! As less and less passengers board Annie and Clarabel to see the plaque, Thomas and the gang decide to take matters into their own wheels and show off their favorite places on Sodor -- resulting in a lot more fun in the sun!

A swarm of bees takes shelter in Thomas' funnel, and he has to find a more suitable home for his new friends.

When Percy's lucky bell goes missing after his deliveries, he enlists Thomas to embark on a quest to crack the Case of the Missing Bell and solve who has stolen his prized possession.

Sandy and Diesel decide to do a magic act: "Disappearing Sandy". But when the trick works a little too well, Diesel sets out to search for his friend.

Thomas accidentally agrees to haul gardening supplies and watch pretty butterflies with Kana, all at the same time.

Sandy's friends try to convince her that it's time to clean up, and helpful Whiff knows the perfect place for her old junk.

Thomas and Ashima spend the day helping Nia try to make her new Indian plant thrive in its new environment.

Thomas and the friends build an express track for Kana to speed fast enough and turn her electric crackle a bright red. However, the engines discover a duck pond in the path.

When Thomas and Kana ignore the needs of their engines, they end up exhausted and unable to complete their deliveries.

Percy has been hiding an oil leak, afraid of what it means to get it fixed. When it starts to interfere with his deliveries, Percy needs Thomas and his other friends to help him.

When Thomas' friends notice that he is glum about Percy being away for repairs, they try to help him by playing a game to see who is best at cheering him up.

When Thomas and Diesel compete in an impromptu speed contest while carrying prized entries for Sodor's Cake Festival, they cause a disaster.

When Whiff has to leave Sodor for the day, the recycling responsibilities fall behind schedule. Thomas decides to get the Troublesome Trucks to help pick up the slack.

When Sir Topham Hatt's plans for a kazoo concert in the park are kaput, Thomas uses creative solutions to help Sir Topham Hatt pivot to pizza and pineapple upside-down cake picnic.

Terence's tread breaks, and he and Thomas explore Sodor after his repairs.

Sandy and Carly learn how to construct better after an attempt to repair a sea wall fails.

Winston, Sir Topham Hatt's new track car, causes problems by not seeking assistance.

Thomas, Kana and Diesel "race" to see who can go the slowest.

Bruno and the engines team up to complete an urgent delivery in windy weather.

Thomas and Nia's light play comes to James' rescue in the dark.

Kana gets a clean fast job while her friends are stuck with a muddy slow one.

Percy discovers the ducks are migrating, so he tries to get them to stay.

A gull lays an egg on Cranky and he refuses to move until it hatches.

Thomas and Diesel improvise engine versions of winter sports to escape a blizzard.

Percy takes a game of superheroes and villains too far.

Nia organizes a special event but must adapt when people and vehicles get lost.

Thomas loses a boxcar of treats and he uses his sense of smell to find it.

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.

Thomas goes too far when taking 'just a few' strawberries again and again uses up all the fruit in Farmer McColl's field.

Yong Bao's fear of creepy crawlies and Carly's disgust for skunks complicate their apple delivery to the Harvest Festival.

After Thomas, Percy and Diesel accidentally break a windmill, they all tell Gordon different versions of what happened. Can Gordon uncover the truth?

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.

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.

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.

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.

When Diesel's bad behavior threatens to ruin a big delivery, Bruno figures out why his friend is upset and how to help.

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.

Kana delivers a beloved sculpture, inspiring her to make her own art. She soon learns that everyone sees art very differently.

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.

When Thomas' delivery of sheep goes badly, he worries that Annie and Clarabel will think he is not good at his job.

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.

When Sir Topham Hatt wants to create a new stamp for Sodor, Percy is determined to help discover what the image should be.

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!

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.

Thomas and Friends try to get the supplies to the site and get construction under way.

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.

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.

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.

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.

When Thomas and his friends accidentally wake Gordon up from his nap, they make it their mission to help Gordon fall back asleep.

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.

Sandy and Carly are attempting to fix a bridge that has collapsed so Thomas and Percy can make a big delivery.

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.