When a hacker begins releasing students' secrets to the entire high school, the socially isolated but observant Sofía works to uncover his/her identity.
Birthday Girl
New student Javier starts school and meets the ever-observant Sofía. Another student's secret is publicly revealed, stirring up the school.
Victims
The anonymous hacker continues to expose more students' secrets, with far-reaching consequences. As friendships are tested, Sofía investigates.
Idiots
Gerry's aggression toward Luis escalates. The hacker brings the situation to a boiling point. Sofía worries about the threats against her.
Night School
Sofía's stress about the hacker threatens to overwhelm her. Raúl throws a big, raucous party for all the students. Natalia desperately needs money.
Face to Face
Raúl and Javier struggle to get along as they help Sofía track down the kidnapper. Meanwhile, the hacker threatens to reveal everyone's secrets.
How Well Do You Really Know Javier?
Javier's history is called into question when Raúl and Sofía look into a specific incident in his past. Gerry continues visiting Luis in the hospital.
Control Z
A look back at the previous semester reveals the series of events that triggered the school-wide hack.
Public Enemy
Quintanilla punishes a suspected student for the hacking. Rosita insists on throwing the school their anticipated NONA party, with many surprises.
