Because Duri is so busy having fun during his summer break he doesn’t have enough time to do any of his homework, so he asks Tayo for help. Tayo is too busy to help so he asks Rogi to help Duri. Rogi tries his best but ends up making a mess of everything. Duri is very disappointed. He tells Rogi that Tayo would have done a much better job. This inspires Rogi to work much harder and fix all the mistakes he made

The new student, Kinder, wants to befriend with as many little cars. Tayo volunteers to help him make friends, and Kinder tries to copy how Tayo acts in front of his friends. Unfortunately, his unnatural actions only make things awkward between him and his classmates.

Iracha is always late for school. All his excuses sound like nothing but nonsense. With stories such as water flowing over the road and an elephant blocking his path, his friends start to doubt his words more and more and think of him as a liar.

During a fire drill at school, Lani gets very scared and confused. Even though she is very upset with herself for not being more confident, she doesn’t hesitate to help Lucy who has run out of fuel. As a token of her appreciation, Lucy gives Lani and wheel of courage. With the help of the wheel of courage, Lani becomes brave enough to do things she usually doesn’t have the confidence to do. There is a fire at a construction site and Lani lear...

The little buses become excited when they hear about a new friend joining them at the garage. Citu asks Tayo to go and greet the new bus, Peanut. He gladly goes to pick up Peanut, but Tayo arrives late and they miss each other. In the meantime, Peanut wanders around the city following butterflies, flowers, and music, making it harder for Tayo, who eventually finds him.

Peanut, the new member at the garage, enthusiastically prepares for his first day of work, and everyone expects a great job from him based on his outstanding skills. However, Peanut finds it difficult to work as a city bus because of his personality and attitude. As he continues working hard, he grows envious of Citu the tour bus. Peanut has the opportunity to temporarily fill in as a tour bus and go with Citu and Tayo to the mountain.

Chris the concrete mixer truck always works hard at construction sites without any complaints but feels like he is not getting enough appreciation or recognition for his hard work. He decides to leave the construction site and meet with Frank the fire truck and Iracha the delivery truck with the hope of changing his job to something that will gain him more recognition from others.

The little buses become bored when their TV stops working. Hana makes up a fairy tale that takes the busses on an adventure to a magical land in the clouds where there is engine oil that can help treat Gani who is very sick. The busses get into a competition about who should get the precious oil.

Mischievous little cars, Speed and Shine, keep causing trouble at school. Teach tries to fix their behavior by making them clean classrooms and run errands. This leads to even more mischief that results in Teach defending them when Rookie and Pat pay her a visit at school. Shine and Teach are touched by Teach's trust in them and try their best to meet her expectations.

The little buses realize that Hana continues to work without any breaks because of endless cars that need repair. The little buses feel sorry for Hana and invite her to go on a camping trip. Tayo and Rogi start working on getting the supplies for the trip and Lani and Gani try to help Hana complete her work early. All the planning results in Hana working harder.

Peanut and the little buses finish work early and decide to have a picnic on the mountain. Lani doesn’t join them and Peanut thinks that she is angry about it. Peanut tries really hard to make Lani feel better and eventually takes her, on her own, to the mountain.

Citu and Hana go away for a day to take part in their volunteer activities. The little buses decide to stay up late and become even more excited when they learn that there will be a meteor shower that very night. However, Booba arrives at the garage to take care of them and they don’t think he will allow them to go and watch the shooting stars, so they make a plan to secretly leave the garage when he falls asleep.

A new emergency center building opens up and all the special-equipment vehicles will live together in the same place. Much to the surprise of everyone, the brave vehicles living together isn’t as easy as working together. Pat’s siren wailing during his sleep, Frank’s water shooting practice in the front yard, and Alice’s puppy make things very uncomfortable and everyone starts to avoid their roommate. This all changes when they are dispatched...

Tayo and Rogi get to take care of Bongbong and Oli at Carry's request. Tayo is Bongbong’s idol and Oli is Rogi’s. They start to argue about who is cooler and better at everything. Tayo and Rogi end up continuously competing with each other because of the baby cars. Bongbong and Oli ask Tayo and Rogi to bring a wheel out of a blocked tunnel, which results in them having to go into the tunnel as well.

Hana can no longer ignore Rogi's garage that is full of junk and tells him to throw it all away. Rogi loves all his belongings and decides to give everything away to his friends instead of throwing it all out. Unfortunately, no one seems interested and Rogi is very disappointed. He decides to throw it all away. The little buses want to cheer him up and go around the city telling everyone about the stuff Rogi is giving away. People and cars vi...

One day Tayo becomes tired of work and wishes on a shooting star that there could be a second Tayo. The next morning, a fake Tayo who looks exactly like him appears. The real Tayo leaves his work with the fake Tayo and goes out to play. Shortly after enjoying his time off, Tayo feels empty and goes back to work. The fake Tayo pretends to be real and tells Tayo to go away. When they go back to the garage together, Tayo tells his friends that h...

Tayo fills in for Cooku and confidently starts working in the countryside. His new route is filled with obstacles such as passengers who require extra waiting time and a cow that blocks his way. He finishes his day exhausted by all the unexpected events and wants to take a rest at a garage. Unfortunately, he is interrupted by a request from the townspeople and that wears him out even more. On top of this, he is trapped in a mud puddle on his ...

On Police Day, Tayo gets to experience a day in the life of a police officer. Hoping to take an active part on the job, Tayo becomes enthusiastic about finding a case to solve. He eventually becomes depressed when he realizes that he keeps misunderstanding normal situations as illegal incidents. Later in the day, he finds Speed breaking the traffic rules because his brakes don't work. Tayo helps prevent a serious accident.

A playground closes down for a safety check-up. When Citu sees the little buses are upset, he remembers when he was little there was a secret playground where he used to play, up in the mountain. He talks to Pat and Billy who used to play there with him. Citu decides to invite the little buses to his secret playground. While they try to find the exact location, Citu, Pat and Billy are delighted to look back on their happy childhood memory.

Rogi finds a little girl's missing teddy bear while acting like a detective. Bongbong witnesses this and follows Rogi around asking to be his apprentice. After Bongbong's continuous requests Rogi starts giving him detective lessons. Bongbong starts spreading the word that Rogi is a great detective. Rubby visits them to ask for help.

While the little buses are at the playground, a mysterious magic spell starts teasing them. A little wizard called Asura is causing trouble for the little buses with his magic and ends up losing his wand while being chased by them. Asura and the little buses try to find the wand together and become closer as time goes by. Asura always wanted to make friends and finally gets to learn how to do it through them.

One night when Lani is driving near the mountainside, she finds a ghost-like glowing object. The little buses do not believe it at first but become scared when they visit the mountain together and see it. When Peanut hears it, he wants to avoid night shifts. The little buses find courage and together they chase the mountain ghost away.

Sky, a tram control center on a mountain, welcomes a new tram as his old train friend retires. A pretty little tram, Trammy, brings new excitement and expectation, but the shy and timid girl tram keeps making mistakes while working. Sky asks Citu to get the little buses to help Trammy get used to her work.

The little buses think that Trammy has a special way of seeing their every move because she knows everything that has happened to them without them telling her about it. One day they secretly break their promise to Hana, and they try to stop Trammy and Hana from meeting each other.