Old Puffer Pete has been working in Chuggington for 150 years, and the mayor wants to commemorate his anniversary with a special show. The trainees are going to do a carefully choreographed routine - but it all goes wrong. Wilson doesn't listen, Koko goes too fast, and Brewster doesn't seem to know his right from his left!

Vee needs someone to pull the royal carriage for the prince of Buffertonia. Chuggers race in to get the job, but Harrison is first - thanks to cutting some corners and running a red light or two. Happy to have the job, he goes off with Puffer Pete to learn the route. Pete notices that Harrison has got into some bad habits. He takes shortcuts, ignores signs and breaks the speed limit.

Toot doesn’t want to do track inspection with Hoot. To get out of it, she pretends she isn’t feeling well. At first she enjoys getting lots of attention, but when Morgan thinks her flywheel needs replacing, which means having her engine taken out and spending the night in the repair shed, Toot realises she’s gone too far.

Fletch is trapped in a snowdrift in the mountains and Wilson must rescue him!

Brewster has his first chuggineer test and Wilson is on Safety Patrol.

Something goes wrong when the chuggineers are building a bridge.

Koko tries to break a speed record at the Chug-a-Sonic Speedtrack.

Brewster and Cormac chase a runaway circular tunnel entrance through the countryside.

The Chuggineers compete with the Steam Team for the coveted Iron Chuggers title

Calley worries she doesn't have a specialty, but proves she is a great all-rounder.

Brewster is trapped when he falls into a sinkhole.

Cormac loves to be busy, but with a problem at the docks, he gets increasingly bored, but when Jackman, Asher and Calley are trapped behind a rockfall at the quarry, it's Cormac to the rescue. Cormac tried to lift the large pieces of rock, but they're too heavy, then he saw a big excavator, he used the excavator to smash the pieces of rock to save the Chug Patrollers and save the day.

Wilson, Brewster, Koko, Hoot and Toot are going to Trainee Camp to learn new skills and work as a team.

Harrison must devise a special tour of Chuggington in order to pass his tour guide test.

Cormac challenges Old Puffer Pete to a delivery contest. Meanwhile, The Chuggineers are relining a tunnel.

When the dock's crane breaks down, Skipper Stu must find another way to load the ship.

Fletch repairs the lighthouse by himself and discovers that being in charge is hard.

Koko’s confidence is shaken after she gets in an accident. Scared and second-guessing herself, will she be able to regain her speed in time to help save Wilson and Brewster from trouble?

When Brewster’s hero can’t make it for Hero Day, he and Zephie set off on their own hero duty and learn what makes a real hero along the way.

Wilson is excited about being the new voice of Radio Chuggington, but when the chuggers decide to see a movie over listening to his radio stories, he exaggerates a news story that causes the town to panic!

Mtambo enlist Wilson's help to feed the animals at Safari Park. Now if only Wilson could remember what food to feed which animal! With Koko and Brewster's help, Wilson learns just how important it is to pay attention.

When a fancy new ice cream machine comes to Chuggington, Frostini feels left behind and goes in search of his true passion.

Koko has Old Puffer Pete feeling like his old ways are methodical and too slow. Does Old Puffer Pete have what it takes to save the day when an ice cream emergency strikes and new technology is put to the test?

Detective Brewster works to help Wilson find Koko’s award ribbon that Wilson secretly borrowed and then lost! Will they be able to find Koko’s award before she finds out Wilson lost it?

When Mtambo takes Koko, Piper and Hodge on a night tour through Safari Park, Koko discovers a new world of Chuggington that glows in the dark.