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

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

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

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

A Venetian Carnival night at Isadora House shows Isa a new side of Dídac and puts the students of Las Encinas on a collision course toward heartbreak.

A dangerous event raises the stakes for Joel and Isadora, who can't afford to lose the grand prize. Dalmar's scheme further puts him in hot water.

A fiery encounter offers Joel a lucrative new avenue. Chloe lays out a trap. A new foe puts Omar's life on the line. Sara and Nico get closer.

Desperate, Dalmar considers a new strategy as Chloe and Eric devise theirs. Joel share his secret with Iván. Luis' obsession with Isadora grows.

A shocking murder leads to two arrests. Emilia and Héctor make a plan as Omar conducts his own investigation. Sara learns more about Raúl's death.

Guzmán tries to earn Nadia's forgiveness. Polo and Christian bond at a gala. Lu bribes her teacher. To pay his debt, Nano must complete a dark mission.

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

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

The details of Ari's attack are revealed but the Las Encinas students prove yet again there is always more than meets the eye.

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

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

After a new development in Isa's case against her rapists, everyone has an opinion. Ari asks Nico out for a drink. Patrick makes a sacrifice.

The last moments before the murder unfold. Christian makes a tough decision. The police arrest a suspect. Guzmán becomes reckless with grief.

Iván seeks emotional release, Sara slips back into old routines, and Ari goes looking for closure. When Isa proposes a collaboration, Nico has doubts.

Héctor and Emilia's bond splits. Nadia urges Omar to report his attackers. As the murder probe proceeds, Iván, Isadora and Sara suspect Chloe and Eric.

An old student is tempted to return to Las Encinas as Isadora struggles with her feelings for Dídac. Iván feels lonely — but that might change soon.

After a public high school collapses, the builder tries to repair its image by paying for three impacted students to attend an exclusive private school.

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

Samu considers his next move with the SIM card, Cruz gives Iván relationship advice, and Caye tries to support a traumatized Isadora.

Samuel throws a party, where Nano makes a move on Marina and spiked punch affects more than one couple. Nadia is hurt by what she learns about Guzmán.

The rift between Joel and Iván widens as Héctor comes between them. Chloe makes a heartbreaking choice, and Carmen receives a startling message.