Yamam's mother asks her son to welcome their new neighbors. Abu Amloud's family sends them cake. Amloud meets Yamam and robot Mersal. Mazen causes a problem for Yamam and Amloud.
Amloud finds a bag and asks Mazen to look for its owner. Mazen tries to find out what is inside it and asks Yamam to help him with that, and Mersal tells them the story of returning the trust to its people.
Yamam goes on a trip and leaves his robot Mersal with Amloud. Mazen asks Amloud to repair his digital tablet, and Amloud takes advantage of Mersal to carry out all his requests.
Mersal tells Yamam that there is danger in Mazen's house. Yamam discovers Mazen's attempt to catch the parrot. They quarrel together, and Mersal tells them the story of "The Sad Camel."
Yamam's mother throws a party on the occasion of his excellence in studies, so Mazen tells Amloud to make Yamam a cake. But Mazen eats food extravagantly, and Yamam tells him the necessity of being frugal and not extravagant.
Yamam wins participation in the inventor competition and begins thinking about a new project. Amloud is upset because he is busy and doesn't have time for him and the science project.
Yamam invents a device that organizes things in their proper place and tries to help his sister Salsabil organize her room so that her mother does not punish her.
Yamam is looking to buy a magnifying glass to see things in space. He is forced to sell some things from his room, and the amount is not enough, so Amloud suggests that he give lessons in sports to collect the necessary money.
Yamam's grandmother visits the house and cooks delicious food for them, so Yamam and Amloud build a plane to get food from the kitchen.
Amloud tells his two friends, Yamam and Mazen, about holding a competition for the game Transformation Ball at Al-Fanar School and offers them to participate, so they train to win.
The teacher tells Yamam, Khamis, and Mazen to choose a leader for the school and asks Amloud to arbitrate between them. So they compete in the game Ball Transformation, and Mersal discovers Mazen cheating in the game.
The teacher Othman tells Yamam and his friends about a space trip, and the successful students will be chosen to be part of the trip, so Yamam competes in the science subject to be among the winners.
An exhibition of strange creatures is held at school, and Amloud participates with an octopus, and Yamam tries to grow rare plants, but Mazen ruins the matter for him.
Yamam's mother asks him to clean his room, and because he didn't do it well, his mother gives him burnt cakes to teach him the lesson of completing the work well.
Amloud is upset when Mazen jokes with him in a mean way, so Yamam and Amloud decide to take revenge on him and set him up for a prank at school.
Mersal reminds Yamam of the Transformation Ball match and his competition with Mazen, so Yamam is forced to train at home so he could win against him, and his mother is upset about that.
Grandma Nasiba's becomes ill, so Yamam postpones visiting her in the hospital until he finishes all his work, and Mersal informs him of the necessity of visiting the patient.
Yamam evades helping his grandmother, Nasiba, to continue playing with his friends, but Mersal tells him a story from which he learns the necessity of helping and respecting the elderly.
The school announces a competition for the best video about a tree. Yamam and Amloud seek to compete in the competition. Yamam discovers his friend Khamis’s attempt to spy on his tablet.
Aunt Noura and her son Faisal come to visit Yamam’s mother, but the Yamam treats Faisal in an unkind manner, and Mersal tells him of the necessity of honoring the guest.
The new school year begins, and the teacher asks the students to submit a research paper on the volcano in order to participate in a competition, and the winner will receive a ticket to enter the amusement park.
Yamam asks his mother for a large Eid gift, and Salsabil challenges him. The mother holds a competition between Yamam and his sister and gives the winner a large Eid prize.
Yamam competes with his friends Khamis and Amloud in a robotics competition, but Mazen almost causes them to lose when he destroys Yamam's robot.
Mazen causes many problems for Yamam, Khamis, and Amloud inside the school's scientific laboratory, and when Mazen invites them to his house and treats them well, they try to discover the secret behind this.
The "Running Slide' causes accidents for Yamam, so he resorts to Abu Amloud to help him repair it due to the presence of a virus in it and asks him to search for the virus ball in order to stop the virus from working.
Yamam and Amloud try to buy the drone from Mazen, but the latter insists on selling it for a large sum, so the grandmother tells them the story of kindness in the sale.
Khamis claims to have helped Amloud after Mazen pushed him to the ground because the teacher thinks that Khamis beat Amloud. However, the teacher does not believe him and punishes him until he discovers the truth.
Amloud gets bad grades in the school exam and is forced to join a school activity in order to improve his grades, so Yamam suggests he would act and he will help him with that.
Mazen tries to intimidate Khamis with a lizard he leaves in his room, but Yamam blames him for what he did, and Mersal tells them a story about the Holy Prophet that prevents intimidation.
Mazen and Khamis agree to the challenge through the airplane war game, and each of them tries to outdo the other to become the best, but Mersal tells them that no one has superiority over anyone except through piety.