Gordon is always teasing Edward for being old and unreliable and never thanks him for helping him up the hill. One day, Thomas decides to play a trick on Gordon to give Edward the respect he deserves.

Annie and Clarabel are always complaining about Thomas' speed, until one day they are accidentally coupled to Caitlin. Can Thomas stop high-speed Caitlin before she takes his carriages to the Mainland?

After hearing an eerie noise at the docks, Salty tells Thomas that it's the "Flatbeds of Fear" looking for an engine to couple up to. The word spreads and soon Henry and Emily hear the spooky noise and are running scared.

Diesel gets all the other diesels to hide from Paxton who thinks they've all disappeared. Diesel gets carried away and takes the joke a bit too far, but despite this, Paxton still helps him when he runs out of fuel.

Toby is always worried about going through Knapford Junction. With the help of Henrietta and Thomas, Toby conquers his fear and is even responsible for spotting a faulty signal.

Toad is bored of listening to Oliver's stories and wants an adventure of his own. He gets his wish when some trucks break away on Gordon's Hill. Can Toad stop the trucks before they collide with Thomas?

James needs to rescue Duck from a flood. James collects Rocky, but doesn't wait for the crane's arm to be secured. Rocky's arm knocks over a signal which leads to all sorts of trouble.

It is high summer, when many tourists visit Sodor and The Fat Controller is concerned about getting them all to their destinations on time. Duck tells the other engines about the slip coaches they used on the Great Western Railway that can be uncoupled at stations without stopping. James then tells the Fat Controller and claims it as his idea. But James has never used slip coaches before and soon runs into trouble!

When Thomas and Diesel are sent to collect trucks from Farquhar Quarry, they argue about who should be the back engine.

Thomas is on his branch line when a passenger pulls the emergency cable and he has to stop quickly. However, it turns out not to be an emergency at all, but a bird watcher who has spotted a rare bird.

Duncan, the grumpiest engine on the narrow gauge railway, gets a taste of his own medicine when he receives a very grumpy passenger.

Marion uncovers what she thinks is the mast of a Viking ship while doing some repairs on an embankment. Thomas suspects that she may have hit a water pipe, but Marion is not so sure.

Percy misses his friend Gator and ends up rushing around as he tries to keep his mind occupied. He is so busy that he loses control of some trucks, which roll into an old mine.

Bill and Ben run out of coal during a shortage at Clay Pits and have to rely on Timothy, who runs on oil, to help them out.

Spencer brings a VIP back from the mainland, but is so intent on doing a good job that he does not notice that he has been sent down the wrong track.

Gator returns to the Island of Sodor after being away for a long time. He is looking forward to seeing his old friend Percy.

It is a slow day for Gator when he finds himself sitting around with nothing to do. However when Oliver breaks down, Gator is more than happy to help.

Emily has to take a giant globe to the animal park.

Bill & Ben trick Timothy into going on an island-wide search for a multi-colored truck. But when the oil-burning engine realizes he's been duped, Salty helps him find a clever way of making the twins trickery come back to bite them. Also known as "Timothy and the Rainbow Car".

Marion thinks she saw dinosaurs in the middle of the night, but passes it off as a dream. She then gets a real shock when they seem to be real.

After losing his way on his first day, new engine Samson has become a laughing stock amongst the engines. The strong little tank engine is determined to get through his day without making any mistakes, but has no such luck.

When Scruff breaks down, Samson is sent to help Harvey collect scrap from the lineside, but Samson takes his instructions a little too literally.

When Millie is startled by the head of a model dinosaur, Samson makes fun of her and the French narrow gauge engine is determined to get her own back.

Thomas is sent to take a special crate to the Town Square from the docks, but Cranky accidentally drops it.

The whole island is celebrating Christmas and there are decorations everywhere. But it doesn't look very Christmassy at the scrap yard. Percy starts to worry that Reg is missing out and he tries to find something to give Reg to cheer him up.

It's Christmas Eve and a lot of passengers are coming home to Sodor for the holidays. Connor can't carry all the passengers who are trying to get on his train.

The Fat Controller is anxious as two grumpy inspectors have come to inspect the railway, starting with Thomas. To prevent an even worse report, Thomas helps return a lost pocket watch to the railway inspector.

Thomas gets himself into trouble and blames a made up engine, by the name of Geoffrey. But when people and other engines around the island start asking to meet him, Sir Topham Hatt also wants to meet this so-called Geoffrey.

Toby accidentally runs out of coal at the scrapyards, leaving the engines to think he's going to be scrapped.

Kevin gets stuck out in the snow, and Victor goes out looking for him, despite his hatred of snow.

After he sees the Fat Controller's grandchildren with chickenpox, Henry worries about catching the disease himself.

Toad spots a stranded whale on the beach, but Oliver does not take him seriously.

Percy doesn't notice sheep jumping out of his cattle truck.

Henry becomes paranoid of meeting an abominable snowman after Spencer teases him about it.

Salty's imagination runs away with him as he worries about going to the Mainland by sea.

Mavis has an accident at Anopha Quarry and is sent to the Dieselworks. Den is sent to take her place, while Dart has to stay at the Dieselworks. However, the two always work together and they fear to be without the other.

Thomas feels guilty about causing Hiro to have an accident. To make up for it, Thomas ventures into Hiro's old hideout to see if he can try to salvage some left behind parts.

Stephen is a slow engine, but one day, when the Sodor Suspension Bridge collapses, he has to stop Gordon from crossing the bridge before it's too late.

Thomas, Spencer, and Bertie argue over how many wheels are best.

Thomas and James compete with each other to see who can get their passengers and football teams to Dryaw first.

Emily idolises Caitlin when she sees how fast Caitlin can go.

A new diesel boxcab named Philip arrives. Loving to race, he thinks he's racing Gordon when in actuality Gordon never took part.

James is determined to prove himself stronger than Philip.

Diesel starts causing trouble at Christmas time and he gets visited by the Ghost of Christmas Past.

Everyone is happy at Christmas time except for Duncan, the Scottish narrow gauge engine, who seems to be grumbling even more than usual.