New students start school at Las Encinas as Guzmán continues to mourn his sister and Christian struggles with his secret. A classmate goes missing.

Seeking the truth about Marina's death, Samuel attempts to seduce Carla. Lu's new friend, social media guru Cayetana, hosts an impromptu party.

Polo and Ander have a heart-to-heart. Nadia gets creative to stop Guzmán from drinking too much and doing drugs. Rebeka's mother offers Samuel a job.

Pressured by his friends, Polo's guilt overwhelms him. Cayetana's mother threatens to reveal her secret. Ander and Guzmán argue with their partners.

Rebeka teases Cayetana with what she's learned. The Halloween party takes a troubling turn. Samuel walks in on a shocking scene.

Lu blackmails Nadia, and Samuel confronts Carla with his suspicions. In the future, Guzmán is interrogated about the missing student.

Lu uncovers a secret while helping Cayetana with her fundraiser party. Omar worries about Samuel's fate. Ander's behavior confuses Guzmán.

Painful truths and dark secrets are exposed as the students unburden themselves and the circumstances behind Samuel's disappearance are revealed.

Carla is interrogated when a student is killed at a party. In the past, she faces Polo in court, Ander has a health worry, and Nadia meets a new suitor.

Guzmán attempts to make amends. Nadia threatens payback when she and Lu go after the same scholarship. Ander comes clean to his loved ones.

Polo is harassed at school. Samuel mulls the police's offer as he and Rebeca become closer. Ander struggles with his treatment.

Guzmán confronts Nadia's father. New romances transpire when Lu throws a creative Valentine's Day party. Rebeka struggles with a moneymaking decision.

Rebeka tries to identify the traitor. A blackout party at the club leads to multiple shocking revelations.

The Columbia scholarship winner is announced. Nadia makes a momentous decision. Samuel's concern about Carla causes issues between him and Valerio.

As graduation day arrives, the futures of multiple students remain uncertain. Polo begs his mothers to reconsider their recent decision.

The events that transpired the night of the murder unfold. The police interview several eyewitnesses who are ready to point fingers.