A teenager appears dead from an overdose on the beaches of Ritoque, and Commissioner Olivia Fernandez is summoned to investigate. Meanwhile, the young men of The Pack are soon to regain their freedom. Faced with the news, 1616 - the group of activists led by Z -take action without expecting that one of its members will end up in the hands of the police.

After being arrested, Sofia is taken to a secret detention facility. She suffers abuse from the police who want to get to her leader. In turn, in the Ritoque investigation, Olivia meets the father of one of the girls who disappeared on the beach, who tries to run a parallel investigation. Finding one of the missing girls alive in Ritoque brings some light.

Following the investigation trail, Olivia and Sandra reveal that there was a second party on a yacht. They discover that the boat was rented by the owner of a company linked to computer analysis. Meanwhile, Olivia feels that her bond with her son Gonzalo is breaking day by day. Sofia discovers that behind the secret operation, there’s an old family friend.

Olivia begins to investigate what happened at the university and realizes that it’s similar to what happened in Ritoque. Gonzalo infiltrates The Pack’s shock group. In turn, Javi manages to make an appointment with The Alchemist, the creator of the complex drug. As Olivia goes through Elena's stuff, she finds a drawing that looks familiar to her.

Valenzuela and Francisca organize a meeting with the main leaders of the extreme right. Gonzalo remains in communication with Cero to carry out a kidnapping plan. Meanwhile, Olivia meets with Pardo to tell him about an important discovery regarding his daughter.

Olivia and Elisa take Gonzalo and Celeste to a safe house. Elena and Koch meet and have a conversation in which a hidden truth comes to light. Jorquera finds faces a dilemma whether to turn in Olivia. While the parapolice officers arrive at the safe house, Valenzuela receives a call from Z, who offers him a deal he can’t refuse.

Javi meets with Franco Duval's brother and something unexpected happens. The 1616 group meets up with Valenzuela. A tense confrontation ensues. At the same time, the trial against Valenzuela and his people takes place. However, Francisca continues to keep the party's flame alive. The Pack promises to return stronger than ever to seize power.