Following the adventures of three trainee engines, Koko, Wilson, and Brewster, as they learn important lessons like cooperation, perseverance and respect.
When Harrison breaks down, Koko volunteers to replace him on the night shift.
Wilson is taking Ebo the elephant to his new home in the safari park.
Late Again Eddie. Hodge and the trainees set out to find a new home for Eddie in Chuggington.
Koko goes off to explore a tunnel and fails to tell anyone where she is going.
Old Puffer Pete's Tour. The Chuggers come across a ghost town.
The Chugger Championships. It is time for the annual Chugger Championship Race, and Koko is sure she can win.
Koko delivers timber to the paper mill, but she goes too fast.
Bang Klang Wilson. The trainees learn how to use ice-cream cars and they get tested on their skills.
Braking Brewster. Wilson and Brewster are sent to get stone from the quarry. Brewster is in a hurry.
Zephie's Zoomaround. Morgan fits Zephie with a siren for emergencies when she gets lost on the way to the farm.
Cool Wilson. Wilson is excited to learn that Frostini needs a helper for the school holidays.
Clunky Wilson. Wilson and Koko have lots of fun racing each other, until Wilson damages his wheel.
Brewster Goes Bananas. Brewster returns from the safari park unaware he has a naughty monkey stowaway on board.
Brewster is excited about seeing the new Action Chugger movie.
Koko finds a lost puppy and wants to keep it.
Outward Bound Olwin. Olwin takes Brewster, Wilson and Koko on an outward-bound training course.
Koko on Call. Twiga the giraffe is having a baby. Koko is given the job of keeping watch overnight.
Brewster and the Dragon. A storm leaves the safari park in chaos and some of the animals escape.
Wake Up Wilson. Koko challenges Wilson to see if they can stay awake all night.
Brewster Knows Best. The trainees do a sign-reading exercise and they are promised a surprise at the end.
Koko Pulls it Off. The trainees must take their passenger test and Mr Simkins arrives to examine them.
Wilson and the Ice Cream. Wilson is asked to take refrigerated cars to the ice cream fair.
Wilson's Wacky Tour. Mtambo is training Wilson and Brewster to help out as guides at the safari park.
Wilson Gets a Wash. The trainees must learn how to make difficult emergency stops with leaves on the rails.
Hodge and the Magnet. Part of the track is out and there is chaos in Chuggington.
Hodge longs to prove to Eddie he can carry out his duties on his own but makes a mistake.
Wilson is helping Frostini create a new flavour of ice cream for the mayor's banquet.
Zephie is given the job of transporting newspaper reporter Rag and photographer Snap.
When a TV crew makes a documentary about Chuggington, Emery sees his chance for stardom.
The trainees try their wheels at pulling and rolling stock around an obstacle course.
Brewster introduces Wilson to his new hobby: people spotting.
Zephie takes the vet, Dr Gosling, to give the animals at the safari park their check-ups.
Brewster thinks Pete is destined for the scrapyard, so the trainees do his work for him.
The inspector is on his way to Chuggington and the chuggers try to get everything ready.
Nurse David from Chuggington Hospital teaches the trainees how to use the ambulance car.
Mtambo longs for some adventure in his life so that he has new stories to tell.
Chatsworth wants to take a nap but everything and everyone conspires to keep him awake.
Koko challenges Hodge to a competition: whoever does the most jobs that day wins.
When Chatsworth gets into trouble in the mountains, Brewster must ride to the rescue.
The trainees learn how to use the paint wagon but Wilson has trouble concentrating.
The depot clock is broken and the schedule is in chaos. Eddie tries to fix it.
The King of Buffertonia plans a tour of the safari park with Mtambo as his guide.
Dunbar has a new training device, but Wilson messes with the controls and creates a storm.
Puffer Pete's firebox is completely worn out and he cannot move without it.
Wilson decides to try on some jetpacks and learn to fly.
Zephie overhears Brewster's jobs for the day and decides to do some of them for him.
A magazine photographer is coming to Chuggington to do a feature on steam trains.
Koko is keen to show how responsible she is but hasn't listened to her instructions.
On his way to buy some paper, Wilson finds a broken pipe gushing water.
The mayor wants to commemorate Old Puffer Pete's 150th anniversary with a special show.
The Chuggers race to get the job of pulling the Prince of Buffertonia's royal carriage.