Episode 1

Wilson, Brewster and Koko try to earn their 'weighing it up' badge by guessing whether or not their loads get heavier or lighter when Dunbar changes them.

Episode 2

Brewster and Koko must work together to wash dirty train cars.

Episode 3

Brewster and Koko have to follow different clues to find carriages of particular colours.

Episode 4

Join Koko, Wilson and Brewster as they learn new skills and life lessons on their quest for many different badges. The Chuggers are on a mission to try and beat the record for the number of problems reported on the rails, while they go on chug patrol for their Chug Patrol badge.

Episode 5

Join Koko, Wilson and Brewster as they learn new skills and life lessons on their quest for different badges. The Chuggers earn their 'Remember the Route' badge by memorising a list of three destinations and visiting them in the correct order. Brewster finds that using rhymes helps him memorise his destination list.

Episode 6

Brewster must keep clean whilst transporting a car of manure.

Episode 7

In order to earn his 'Horn Honking' badge, Wilson has to prove that he knows when to use his horn, and when not to use it.

Episode 8

Brewster, Wilson and Koko must complete their safety checks before going on a long-distance night delivery, but Koko skips some of the checks.

Episode 9

Brewster tries for his 'Capability' badge by transporting loaded cars to the quarry. But the task isn't as easy as he initially thinks, and soon he finds himself seeking out the help of his friends.

Episode 10

Koko, Wilson and Brewster try for their fire safety badges, but when the alarm sounds, will they remember the rules for evacuating a burning building?

Episode 11

Wilson needs to remember where he is going and not be distracted in order to earn his Knowing Where You Are Going badge.

Episode 12

Brewster and Wilson earn their Helping Wheels badge by helping others on and around the tracks.

Episode 13

Brewster and Koko try to stay on schedule while transporting passengers.

Episode 14

To be able to earn his Animal Helper badge, Brewster is asked to look after Ebo the elephant while some work is being done to Ebo's enclosure at the safari park. At first it's all fun and games, but when Ebo refuses to go back to the safari park Brewster has to come up with a creative solution to get him back.

Episode 15

In order to earn their Work Those Wheels badge Koko, Brewster and Wilson need to put together a work out. When Wilson realises that he isn't strong like Brewster or fast like Koko, he has to invent a new and fun workout for himself.

Episode 16

Koko and Brewster try for the Buddy Badge. To earn the badge they must learn to trust each other, as they have to direct one another while the other has their eyes closed. Koko has a hard time trusting Brewster, but when she realizes that they are indeed best buddies, she starts to trust him.

Episode 17

To earn their Star Map badges, Koko, Wilson and Brewster must find pictures in the stars and use the them to guide them where they're going. Brewster finds it very difficult to see the pictures, but when he starts to use his imagination, it becomes very easy and clear.

Episode 18

Brewster and Wilson try and earn their Emergency badge by staying calm while running through an emergency drill where Emery pretends to be stuck in a tunnel. The chuggers find it difficult to stay calm, but when a real emergency happens they have no choice but to stop themselves from panicking and work together to help Emery.

Episode 19

In order to earn her Cargo badge, Koko must be able to transport certain cargo from point A to point B. She soon realizes that some cargo is more fragile than others, and that so requires more careful transport.

Episode 20

Wilson has a hard time concentrating when playing the game Two of a Kind with the other chuggers, in an effort to earn his Concentration badge. The task becomes easier when he is taught some tricks that will help him memorize things.

Episode 21

Koko learns the best way to delegate tasks for delivering papers.

Episode 22

To earn the Good Judgment badge, the chuggers need to complete a brake test.

Episode 23

The trainees learn about being efficient. They clean up litter to ensure it gets recycled, trying various methods to decide which way is the best.

Episode 24

Wilson, Koko and Brewster need to keep quiet for a whole day.

Episode 25

The chuggers have to think of a way they can help make Chuggington even more beautiful. Koko decides to wash down the platforms, Brewster paints a few fences, and Brewster picks up litter.

Episode 26

When the chuggers are given a shiny new badge, they are also given the task of forwarding that badge on to someone they really appreciate.

Episode 27

Brewster and Wilson try for their Town Crier badges - a badge recognizing their public speaking skills.

Episode 28

Koko and Brewster must each deliver three packages before three o'clock.

Episode 29

Wilson struggles to concentrate when working towards his Fire Warden badge. He must make sure not to miss that alarm.

Episode 30

Wilson is sent to a mystery location and needs to find his way home with the help of the Chug-nav.

Episode 31

Wilson and Koko have to rescue a stranded chugger from the snow.

Episode 32

Koko and Wilson struggle to fit awkward-shaped objects into an open goods carriage.

Episode 33

Brewster has to invent a fun tour that teaches some visitors a little bit about Chuggington. If Brewster manages this then he will get his Show and Tell badge, but with visitors that get easily bored, Brewster really has to work hard to keep it fun.

Episode 34

Hoot and Toot need to double check the recycling in order to get their Green Machine badges.

Episode 35

Wilson has to use the camera car in three different ways to earn his Chug and Click badge. But he only has one hour to get it all done, so he must be snappy.

Episode 36

Wilson learns about good customer service.

Episode 37

Hoot and Toot learn about setting priorities.

Episode 38

Hoot and Toot need to deliver the cargos waiting in despatch before sunrise so that they can earn their Night Chuggers badge. But it is hard to stay away in the middle of the night.

Episode 39

Wilson has to teach Hoot and Toot to use the paint wagon. If Wilson does so successfully then he will get his Trainer badge.

Episode 40

Brewster learns about camouflage when he repaints the lizards' house.

Episode 41

Wilson learns to keep the tracks safe as he tries for his safeguarder badge.

Episode 42

Hoot and Toot have to round up all the stray carriages around the depot in record time.

Episode 43

Brewster goes on the look out for potential safety hazards on the track.

Episode 44

Wilson and Koko have to feed the animals in the snow, but Wilson can't find the sheep.

Episode 45

Brewster learns to share the workload with his team mates.

Episode 46

Decka teaches Toot that having good manners is about what you do, not what you say.