James starts to bully Philip and not say sorry to him. But when Philip takes the Troublesome Trucks of sardines over the fenland track, James blocks his way and causes Thomas, Paxton, and Rebecca to stop behind them, Philip learns that sometimes even the smallest engine's actions can make them the bigger engine.

Thomas meets another big blue engine that reminds him of Gordon on his first day in Brazil.

Thomas causes confusion and delay by not seeking help when he makes mistakes on the Indian Railway.

Raul wants to beat Thomas in a game, but his competitive nature soon gets him into trouble.

Thomas's whistle is broken, so he goes to the Steamworks to have it repaired. However, he rushes off on a delivery before it is properly fixed.

A new enthusiastic fire truck called Flynn tries to impress the Diesels with his bravado, but his actions have potentially disastrous consequences.

The puppet show has arrived on Sodor and Skarloey is determined to pull the special train

A new tender engine named Rebecca comes to work on the North Western Railway, but gets clumsy and blocks the Flying Scotsman's platform at Vicarstown early, makes her passengers late by leaving the stations early, and blocks the engines down at Brendam Docks.

Yong Bao informs Thomas about Pandas as the national animal in China, so he looks hard for one in the bamboo forests while taking the film crew, An An and Lin Yong to the Nature Reserve.

Thomas' friend Merlin comes to Sodor from the Mainland for the first time, and Percy wants to see him.

Thomas thinks he has been given very silly cargo until Hong-Mei explains that it is a very important water wheel, made from bamboo, but Thomas loses it while taking a shortcut and tries to get it back.

Thomas is terrified when he is given the honor from Yong Bao of bringing a dragon to the Chinese New Year celebrations, thinking it would be a real fire breathing dragon.

Thomas offers a lift to a ranger named Ranger Jill while working in the Australian Rain Forest. Thomas is excited to learn from her about all the animals that live there, but he is too loud and impatient to be very useful.

Nia is a really clever engine and knows about all sorts of things, but when the Fat Controller asks her to take Annie and Clarabel and pick up passengers from Knapford Station to Thomas' Branch line, Nia has great trouble reading numbers so Annie and Clarabel teach her.

When Diesel hides from the other engines, his plans backfire and he gets a surprise.

Thomas is keen to prove to his new friend Gina that he is an expert in all things Italian, until he gets lost down an old mine on his first day in Italy.

Nia is bringing an elephant to the Sodor Animal Park, but the elephant does not like steam engines.

Thomas is charged with the important task of transporting the Fat Controller to the town square to switch on the Christmas lights.

After admiring Belle's water cannons for putting out fires, Marion's steam shovel for digging holes and playing games, and Harvey's crane hook for lifting crates and putting Bill, Ben, and the Troublesome Trucks back on the tracks, Rebecca is worried that, unlike the other engines, there is nothing special about her.

When an action movie is filmed on the Indian railway, Thomas is desperate to be involved.

Thomas tries to save one of the Troublesome Trucks of China, named Lei, but fails to do so. Yong Bao teaches Thomas all about tai chi, and Thomas soon uses it to rescue Lei, who is racing down the tracks again.

Thomas wants to be just like Isla, a Flying Doctor's plane, who transports Dr. Claire to remote places where it is hard for patients to get to hospitals or doctors for treatment, but fails to do so. When a cyclone come in, Thomas is determined to save the day.

Shane has too much fun to stop and refuel until he runs out of coal and gets stranded on the Australian Railway.

In Brazil, Thomas meets two wood-burning engines who have never traveled beyond their eucalyptus railway. Thomas agrees to swap jobs with them for the day, but this causes more trouble than he expects.

Sonny is trying to prove himself to be a useful engine so that he can stay working on Sodor, but Diesel seems to be the only engine who can trust him.