It's time to play the Hidden Friend game at school. Oswaldo and Tobias are sure they will take each other out (they've been training). But the training doesn't work and Oswaldo takes out a boy named Alberto, but he doesn't remember anyone with that name. After a brief search, Oswaldo, Tobias and Leia discover who he is. Alberto is a quiet, dull and mysterious boy who sits in the back of the room. Yet Oswaldo is determined to give the best hidden friend gift in the world! So the trio investigates Alberto's life, but finds absolutely nothing. The guy is null. Oswaldo then discovers who he really is: a FIGURANT! He knows those people who are passing by in the background of the scenes that happen in our lives. This means that Oswaldo is the coolest protagonist (of course). And it's up to their megalomania to "promote" Alberto in a supporting role in their gang. What he doesn't know is that Alberto just doesn't like to draw attention.

Oswaldo, Leia, Tobias and the guys from the school are at the beach. Oswaldo tries to make his friends believe the day he was able to buy a PF POPS from a beach vendor. What would a PF Popsicle be? Well, I'm glad you asked! The PF Popsicle is a popsicle made with the best ingredients of a dish made: rice, beans, steak, French fries and farofa farofa. Huuummm! Nobody believes in the legend of the PF Popsicle, so Oswaldo sets off on the scorching sand of the beach in search of the Styrofoam that sells PF Popsicles. He's obsessed with proving to his friends that he's not lying. On this journey, he is forced to form an alliance with Medeiros, the rich, spoiled, and quarrelsome boy from high school. He's the only one who believes in Oswaldo. What our penguin doesn't know is that he has other plans for the PF Popsicle. Will Oswaldo find his treasure in the form of a Popsicle? Or will his obsession blind him?

The art teacher Jobert takes a vocational test for all the children in the school, that is, a generic test with several questions that determines what profession the children will pursue in the future. Oswaldo takes the test and takes "teacher" as a vocation. Of course, in Oswaldo's mind, this immediately turned him into a trained teacher. He goes to the principal, Marilua, and she, as an educator who believes a lot in “hippies” and unconventional methods of education, believes that it can be an interesting experience for the students. So Oswaldo spends a day teaching his own class, to Leia's displeasure. He recites comics in literature class, covers the blackboard with equations invented in math class, he skips chemistry class because "no one will ever know what chemistry is". Until he notices how sad all his colleagues are. And that's not his fault, it's just that nobody liked the result of the vocational test.

Oswaldo is very excited after watching the movie of the year: ¿Moths Weightlifters 7¿. After being exposed to the soda advertisement inserted in the film, he drinks some Maricolas and wins the promotion, he will take the winner to the Amusement Park of Moths Weightlifters (best park!). He, however, runs into a single problem: the ticket guarantees entry for him and a best friend. A. BEST. FRIEND. How to choose between Tobias and Leia? Easy! All you have to do is set up an Oswaldo gameshow, complete with signs from the audience, tricky questions and even a cooking round. All this based on specific knowledge of Oswaldo's tastes. Sounds cool right? But the competition heats up with Leia and Tobias getting more and more crazy to win the game, and more and more competitive with each other, until things get out of hand. Will their friendship survive the crazy stuff of the Oswaldo Game Game show?

The current fashion at school is collecting sticker albums. Oswaldo is trying to complete his ¿card album of the soap opera ¿Corações Bucaneiros¿, the pirates in love. He spends all his money buying stickers and only one is left to complete the album. That's when he discovers one so rare that everyone soon finds out. Everyone wants her. Everyone needs her desperately. Oswaldo then discovers why the sticker is so special: It was made for him to complete ANY sticker album. It breaks the rules of the 4th dimension in such a complex way that it can fry the brain of anyone trying to understand its logic. Angry, right? Just take the card to the classroom where you left the album and it's all right, it's over. Well, nothing is that easy. The special figure caught the attention of Dimitri, the school's mobster. A boy so obsessed with figurines that he became a dark and dangerous being. He used to be Leia's friend a long time ago, when the two dominated the sticker traffic in the area.

The day starts like any other in Oswaldo's life. He wakes up, gets dressed and goes to school. Only... there's no one at school!! He is completely alone. Without anyone. At school. Wow!! Of course, Oswaldo decides to mess up everything he can: the chemistry lab explodes, plays with toilet paper and even surfs through the corridors. Until he feels bored being so alone and with no one to talk to. He then gets a Tobias sock and they start talking (well, it's actually him talking to himself) Suddenly the school is completely full of friends made of random things: a broom turns into Leia, the garbage can is Medeiros, a ball with a face is director Marilu, and Oswaldo is living a complete episode of her private show, full of drama, romance, action; all inside your crazy little head. He has a super cool day, but when he gets home he finds it all happened simply because it was Saturday.

Oswaldo's birthday arrived, uhul!! Only it's Monday, race day and he's super down about it. Well, Leia prepared a surprise for him: she planned a Gamebook around the neighborhood especially for Oswaldo. So, together with Tobias, they walk around town dressed as medieval heroes, and Oswaldo has to follow the script Leia wrote for him, solving questions that will lead him to the lost treasure (it's a surprise party, don't count for him!) But things begin to go wrong when Leia finds out that Tobias decides to rewrite the end of the game without telling her. And as Tobias is a bit of an airhead, they find themselves totally unscripted and in the middle of a perilous journey through the unfamiliar streets of the city. Worst of all, Oswaldo still believes that everything is part of the game.

There's going to be a science fair at the school, and Leia can't wait to win the "Scientist of the Year" award for the project she's been working hard on. The problem is that you can't have Oswaldo and Tobias in the same workgroup. So she decides to help, giving them the classic "beans in cotton" so that she can focus only on her work: a perpetual motion machine. Oswaldo and Tobias manage to make fun of the entire event. They believe they are in a "science fiction fair" and not the normal, boring "Science Fair". Oswaldo Dresses up as a robot and duels with Tobias, who shoots imaginary lasers. They turn the fair into total chaos. It all ends with Leia's experiment being destroyed. She fights with her Oswaldo and Tobias but after seeing them downcast, she decides to fix things.

Oswaldo goes to a game store and comes across the "Space Ninja Dinosaur". The clerk warns you that the game is extremely dangerous and, once on the Banned Wall, you will never be able to rent anything there again. However, he ends up putting the game in the hands of Tobias, a former gambling addict who is recovering.

After having his wedding photo album stolen by a mysterious lake creature, Gilbratar launches a challenge to hunt down the monster; Oswaldo wants to win at all costs, but soon realizes that glory is not what matters most.

Students are submitting essays about their vacation. Geovan reads his essay, which turns out to be an endless "tic tac", and is interrupted by Professor Gibraltar. In Oswaldo's turn, the bell rings. Oswaldo does not believe that a simple essay is worthy of his vacation, and decides to direct a play about it, paying his colleagues with risolis to act. Finally, his colleagues tire of the impossible stories and the arrogance of Oswaldo, who is forced to admit that his vacation was normal and boring.

Oswaldo is sad. He was mocked in art class when he presented his artwork "Joinha Duck" (he's a duck, and he pulls a stick!) Depressed, he wanders aimlessly around the school until he hears a very happy song coming from one of the classrooms of class. He is intrigued and discovers something very amazing: it's the nursery room! So Oswaldo decides to join the preschool, where all classes are taught by Furão Listradinho, a Barney-style character on TV. Oswaldo LOVES it: he gets a little gold star for every correct answer, they take a nap every day in the middle of class and he can even wear some super cool shorts that you never need to go to the bathroom again! Kindergarten life is much nicer, he even convinces Tobias to join him in the fun. That is, fun until Oswaldo ran into the wire and accidentally broke the classroom TV. Suddenly all babies turn into drunk zombies, attacking everything they see in front of them, even Tobias was drunk.

Leia features a videocast about obscure boargames on the internet. She invites Oswaldo to be her assistant during one of the episodes, but he manages to struggle with the pieces and the super glue, making an absurd mess in a few seconds. The video goes viral and he becomes a web celebrity - for a long 3 minutes before the next meme becomes a sensation - the ""boo-yo-yo boy"". But these 3 minutes of fame were enough for Oswaldo to achieve success, hire his father as his agent, write a book and destroy his friendship with Léia - some of the mishaps of fame.... Oswaldo then discovers himself a former famous, a sub-celebrity and the only job he gets is a series of failed events - a pigeon convention, a debutante party and a deadly attempt to viralize a video tape - a new opportunity to regain the glory of the success of hours ago.

It's inspection day at the cafeteria, and Marilua is forced to dismiss Ozzy after seeing the mess and mess she kept there. But the kids aren't happy about the change, and they try to help him get back to school.

Oswaldo, Léia and Tobias are super excited about the release of the game Finite Cosmoviagem XV, but when they arrive at the store's gallery they are faced with an endless queue.

Oswaldo's gang fights for a Swiss roll, the only source of food they have.

Oswaldo gets lost in a large department store in search of an important item for his mother. Upon meeting Leia, Tobias and Medeiros decide to visit Magão, the store's famous magician, who has an answer for almost everything.

Unable to adapt to the games of Oswaldo and Tobias, Leah joins an all-girls club.

After hearing a rumor that Joubert kept all the confiscated toys in his house, the students decide to create a plan to recover their belongings.

Marylee tells students that they must vote for a class president in order to acquire the right to go to the bathroom during class. Leah is excited about this, but she has to find a way to beat Tobias, who has huge popular support due to the extravagant promises he makes.

Oswaldo finds a new "friend" named Janjão, but is irritated by his innocent attitudes.

Oswaldo, Léia and Tobias are on tour for the must-see show by the band Funknejo do Pagode. Nothing could go wrong unless the snack stop was commanded by an artificial intelligence robot that wants, at all costs, to prevent them from continuing their journey.

Zander asks Oswaldo to run the store for fifteen minutes while he goes to the bathroom. After a while, Zander returns to the store and there is fire everywhere.

Tobias discovers a barber's most important rule: what you say in the cut gets cut. Then he learns the hard way: a child tells a secret about Seu Ramiro and his past.

Oswaldo tells his friends that he believes their lives are part of a TV show.

Tired of not being taken seriously, Leia enlists Geovan's help to scare her friends.

Geovan shows up at school with new magic tricks. Everyone likes it, except Leia, who keeps revealing the secrets of all Geovan's tricks. This doesn't seem to shake Geovan until it comes time to do a trick with Leia.

After Carlos Peixoto's funeral in the bathroom, Tobias is very sad and Leia understands that his friend needs space, but Oswaldo tries to pull him into activities; Oswaldo then notices that he is also sad, but doesn't want to deal with the feeling.

When trying to enter the gym, Vivian is surprised by P.A. who informs her that the second coconut war is happening to decide who will command the court, and when asked, says that they didn't call her because she always wins, and it's annoying.

Oswaldo, Leia and Tobias go to the video store to play a new virtual reality game in space. Over time, they notice that Vanderson is so focused on getting all the trophies that he has become a tyrant.