An anonymous person seeks vengeance on behalf of Luis. Sofía must solve the first mystery in order to save two classmates before it's too late.

When a certain someone returns to school, chaos breaks out. Natalia rushes to solve her financial dilemma. The search for the avenger heats up.

Sofia and Javi try to predict what the avenger will do when Rosita insists on hosting a party at her house. Gerry feels cooped up at Raul's place.

Natalia's account of what transpired the night before sparks an argument between Javi and Sofia. Pablo struggles with the news about María.

Raul and Sofia try to find Gerry before the avenger gets to him. Desperate to raise money, Natalia tries an unorthodox dating app.

On the day of Quintanilla's goodbye ceremony, Sofia and Raul race to discern who the next victim will be. María attempts to help Natalia.

Sofía studies Luis' drawings to work out who the avenger is targeting next. Natalia and María accept an invitation. Rosita doesn't heed a warning.

Multiple people's lives are put in danger when the avenger makes a final desperate move, leading to devastating consequences.

A hacker has returned to torment the students with their secrets — and homes in on a night Sofía, Javi and friends would much rather put behind them.

The investigation leads Sofía and Javi to Clau's theater teacher. Pablo grieves over the latest news. Raúl realizes he's been deceived.

More victims of the hacker's violence pile up, and a case of mistaken identity leads to a confrontation between Sofía and Natalia.

Sofía is crushed by her most recent discovery, but continues her sleuthing. Alex warns Clau about Sebastián. Gerry and Bernardo become closer.

Javi gathers everyone together to make a new plan, but when an exasperated Sofía goes off-script, the stakes of the game are raised.

Sofía is deemed irrational when she insist that Raúl is innocent and in danger, so she decides to search for him solo. Gerry seeks a new home.

Gerry reaches out to the group when he suspects something is amiss and everyone must decide what to do to save their friends... and their futures.