When Harrison breaks down, Koko volunteers to replace him on the night shift with Wilson and Brewster. But during the night shift, she brags about being the fastest, scares Wilson and Brewster, and even teases Brewster! But she soon learns her lesson when she breaks down during a power cut. Brewster then devises a plan saying that Wilson should tow Koko back to Chuggington while he does the night shift all on his own. The power then comes back on again. (Series Premiere.)

The trainees each carry an animal to the new safari park. Koko carries a monkey, Brewster carries a giraffe, and Wilson carries an elephant named Ebo. But Wilson has a hard time with Ebo on the way to the new safari park because as he brings him, Ebo throws some fruits at him, and when Wilson is almost at the new safari park, Ebo escapes! Wilson does not know that Ebo had escaped until Koko asks where he was. Wilson then goes and gets Ebo and returns to the new safari park with Ebo the elephant. Note: This is the first episode that involves animals. Note #2: This is Vicky the Zookeeper and Ebo the elephant's debut.

Wilson and Brewster are sent to get stone from the quarry, but Brewster is in a hurry to practice his new moves. Wilson saves Brewster from an accident in the mountains while returning home by dropping his load. Note: This is Karen’s Debut. Tunnel Colour: Blue

Koko explores a tunnel with Wilson and fails to tell anyone but Brewster where they're going.

Eddie is constantly late to work, so Wilson, Koko, Brewster, Hodge, and Zephie help him by finding him a new house.

Old Puffer Pete lets Wilson use his steam-powered ice cream car when Wilson's breaks down. At the end of this episode, Frostini asks Wilson to teach him how to use the steam-powered ice cream car.

Koko has to deliver wood to the paper mill, but she ignores Old Puffer Pete's advice to take things slowly and has an accident!

Tunnel Colour: Green

Note: Wilson and Brewster do not speak in this episode, although they are seen in their roundhouses in the beginning of this episode.

A track is broken on the other side of the Yellow Tunnel and Hodge has to fix it without Eddie. Wilson tags along to help him.

Wilson breaks a wheel while racing Koko and Brewster but is scared to get fixed. Felix asks Wilson to bring him to the county fair, which ends up being a bumpy ride for him. When Wilson goes to the repair shed, Morgan shows him a cool machine and Wilson then tells Brewster and Koko all about it making them want to go. At the end of this episode, Felix won in the butter competition and he then gave Wilson a blue ribbon because he'd helped make the butter. This episode ends with Wilson bringing Felix back home.

Tunnel Colour: Green

The trainees do a run with Pete and he gives them a tour of the old town.

A monkey steals Brewster's postbags and causes other problems around the depot like stealing Eddie's wrench and lunchbox. This episode ends with Brewster returning the monkey to the safari park and the monkey throwing a banana peel at the fourth wall.

Brewster delivers a load of recycling for Irving, but has to do a long run and could miss Action Chugger's new movie.

After finding out from Emery that some animals escaped from the safari park, Brewster is convinced that dragons are real.

Koko is unhappy to be told that she has failed a test, and she cries about this, but Irving helps her get a second chance. Note: This is the first episode that involves crying.

Hodge wants to do more things without Eddie, but his attempts create all sorts of problems in the training yard as a result, and he needs to find the courage to own up.

Frostini is helped by Wilson and the safari park monkeys when creating a new flavour of ice cream.

Brewster tells Wilson about his new hobby: people spotting.

After Emery makes an offhand comment, Zephie becomes afraid of the monkeys at the safari park.

It's Pete's anniversary and the trainees put on a show for him.

Hoot and Toot have to deliver some goods, but Hoot has some visual problems. Thus they mix up a number of things, including a repair machine which transforms Wilson into Koko as a result.

Wilson gets lost in the snow.

Wilson joins the Chug Patrol rescue squad, and is mentored by new character Jackman.

It's Wilson, Brewster and Koko's first day to try out their new advanced training gear. They head up to Rocky Ridge, where Koko and Brewster go into the mine and Wilson stays back to try out Chug Patrol 1, a mobile crane car. He feels the ground shake, and a wagon rolls away from him. While trying to stop the wagon, Wilson derails. Meanwhile, Brewster and Koko are in the mine when they feel the tremble. It knocks some stones onto the tracks which derail Koko and leave her dangling over an edge. Skylar then rescues Wilson and tells him he thinks the tremble came from Rocky Ridge Mine. Wilson remembers that Brewster and Koko are down there and races to the rescue, saving Koko just before the mine collapses.
Then Emery breaks down in the forest. Wilson uses his new skills to locate Emery with the aid of a flare and gets him back on track with a huge crane.

This Special Episode has a run time of just over 23 minutes. It is a combination of two episodes from Series 4 ("Rescue at Rocky Ridge" and "Wilson's Forest Flare") with additional footage providing a transition between the two episodes, including Wilson being shown the facilities offered by the new Chug Patrol Headquarters.

Stars Brewster and the Chuggineers. Brewster is mentored by new characters Zack, Fletch and Tyne.

The Chuggineers work to build a new high speed link to Tootington.

This Special Episode has a run time of about 24 minutes, and is an extended version of a combination of two episodes from Series 4 ("We Are The Chuggineers" and "The Tootington Tunnel"). Additional footage provides a transition between the two episodes, including showing Tyne returning the tunnel boring machine and Brewster laying track inside the tunnel. Payce tells Brewster that she is nervous about her first run, so Brewster lets her practice. It also includes an introduction to Cormac, showing him loading up the wagons of tunnel walls.

Wilson has lots of rescuing to do in the hazardous winter weather.

This special is a combination of two series 4 episodes, "Winter Whiteout" and "Snow Patrol", as an extended version, has the runtime of 24 minutes.

Koko is thrilled to be spending the day training with Daley, Chuggington's new express delivery engine. Together they pick up and deliver important packages all around Chuggington, frequenting the bustling docks where Skipper Stu, Chuggington's new Dock Master, is unloading and loading the ship. Through their adventures, Koko and Skipper Stu learn the importance of patience, paying careful attention to detail and, of course, teamwork as they commence with the Delivery Dash at the Docks!

The special is a combination of two stand-alone series 5 episodes ("Koko Express") and ("Skipper Stu and the Steam Crane"), and with a little extra footage added, has the runtime of 24 minutes.

Freezing temperatures and a fire at the lighthouse mean trouble for Chuggington.

This special is a combination of two stand-alone series 5 episodes, "Chug Patrol Chief" and "Fletch Shines". With a little extra footage added it has the runtime of 24 minutes.