A former high-ranking financial executive finds redemption and romance when he's paroled after a prison sentence and becomes a math teacher.
Carlos Valdivia arrives as a substitute teacher at a school for at-risk youth after spending three months in prison for bankrupting his company.
Carlos is accused of harassing Flavia due to a misunderstanding. Maicol gets involved with Claudio and El Hámster, two criminals who offer him work.
Flavia reveals to Claudio that she’s pregnant. Zafrada tries to sell drugs at school. Ana wants to end her relationship with Francisco.
arlos and Francisco’s relationship gets complicated after Carlos’ interest in Ana is revealed. Claudio refuses to support Flavia. Maicol is arrested.
The students organize a protest and the school dean plans to get rid of the director. Maicol gains Claudio’s trust.
Francisco remains in his position after the director is fired, but he suffers a loss in his personal life.
Berta leaves school and starts a relationship. Flavia has problems with her pregnancy. Little by little, Maicol wants to start studying.
Maicol and Flavia throw Toya a party. Francisco accepts money to help cover up embezzlement. Claudio and El Hámster are arrested in a raid.
Maicol asks for Carlos’ help to hide him and his sister after Claudio is captured. Francisco tries to win back Ana.
Carlos starts to work with Rosario at the stock market. Francisco gets more and more involved with Jorquera.
The students sue the school for negligence, which sets off other accusations. Carlos helps his sister with accounting.
Jorquera is accused of misappropriating funds and Francisco decides to flee. Maicol and his sister Toya are going to live in Calama with their mother.