While carrying out a mission against one of the leaders of terrorists named Abu Ya'rib, Rachid gets shot after the terrorist found out that the squad is the police; the doctors are able to save Rachid's life. The squad decides to avenge Rachid and arrest the terrorist cell.
Seif is able to make the band members go back to childhood through an advanced device to carry out a mission on a train against children, who rob passengers, and reach the head of the gang. After the mission is completed successfully, Rachid wants to remain a child and not return to his true age.
As a new member named Biya comes to Rachid’s team, Haifa feels jealous of her, especially since Hammouda does what she says about the mission they are undertaking to protect the Colombian ambassador, as a weapons smuggling ring tries to kidnap his daughter. Ammar succeeds in eliminating the gang leader.
As officer Hammouda tells the team that drugs are sold in middle school, Ammar decides to impersonate a teacher, go to the school, and find out who is selling the drugs to the students. He arrests the distributor who is a young man from outside the school.
After two girls are reported missing, Rachid arrests a young man who was flirting with them on Facebook for investigation, but he discovers that the young man is innocent after it's revealed that the girl had been kidnapped by a woman, who is the wife of a man whom she had an affair with.
As Abu Kitab detonates a car bomb and six people die in the bombing, the squad goes to search for him in his house, they find that he is married to four women who tell them that he died in Iraq four years ago. Rachid finds out that he is planning to blow up a nightclub, and the squad arrests him.
When a young man kills a crocodile in the zoo, all the news agencies talk about that crime, and animal welfare associations call for Tunisia to implement the harshest punishment on the criminal. The Minister of Interior asks Hammouda to send his team to search for the culprit.
When a citizen finds a bag in the street, he calls the police. Rachid and Ammar find nothing in the bag, but Hammouda tells the team that this is a message from terrorists and asks the Minister of Youth and Sports to run the Derby match without an audience in case of any expected terrorist act.
When a bank robbery is committed by a Tunisian in the US, Rachid's squad goes to New York to help the US police in arresting him. The chief, who knows them from a previous mission, asks Rachid and his team to arrest the thief who only stole a congressional document and left the money.
As the team arrests the Tunisian young man, Rajab is able to make him say the name of the person whom he works for, who is a Mexican man, so the chief sends Rachid's team to Mexico after providing them with intelligence communication, as everyone wears Mexican costumes so that no one will suspect them.
As Haifa works in a bar in Juarez, she meets the criminal who asks her to meet him at his house for a drink. She is able to learn the time and place where the papers and drugs will be delivered. As Rachid and Ammar take the documents and arrest the head of the gang, the team returns to Tunisia.
As the producer of the show Bolice talks to the actors with their real names, he asks Rajab to write the script, much to Ammar and Haifa's surprise. Rajab writes a fictional series about the team's encounter with aliens, and the producer likes it.
As the team decides to follow the script that Rajab wrote, Rachid becomes in charge of casting, as he selects the characters who will play the aliens' roles. Four characters are chosen to confront the police team. Haifa takes over the leadership of the squad to kill the aliens.
Hammouda asks Rachid to investigate the case of selling heroin through a large pharmacy in the capital. The team reaches the head of the gang who disguises himself and takes the identity of the owner of a cement factory. Rajab is taken to the hospital after inhaling the cement which is actually heroin.
As several cases of food poisoning take place in the hospital because of meat, the squad decides to investigate the matter. As Haifa goes to Basma Meat Company to investigate them, a worker who was injecting meat with harmful substances is arrested, and the doctor who incited him is arrested as well.
As a children's association plays a decisive match, one of the members threatens to blow up the country. Rachid and his team go to the headquarters of the association, and they discover that the children are only playing a Playstation game. Rachid forms a football team but they lose because of Rajab.
A girl and her boyfriend kidnap the scientist Yahya Bin Ali and steal his computer that contains the research. As Seif is the only one who knows the password, the girl goes to the police headquarters to rob him of the necklace that contains the smart card, but Ammar arrests her and frees Yahya.
Ammar is taken to the hospital because of a tattoo that stuns any man who looks at it. Rachid goes to the vineyard to expose the gang consisting of girls who want to eliminate the men, but the head of the gang captures Rachid; the rest of the team goes to his rescue. Rajab arrests the girl and her gang.
When a gang kidnaps a child, Seif decides to turn the team into children through his advanced device in order to set the child free. The woman kidnaps Ammar as a child and admires his intelligence; he sends a message to the team informing them of his location. The team arrests the gang.
Ammar rejoices after his wife gives birth to a boy. The Minister of Interior promotes Rachid and everyone congratulates him for his outstanding ability in leading the team. As Ammar's son grows up, Rachid remembers all his team members and feels proud of them and of being a Tunisian.