Episode 1
Six years after murdering his parents, Sergio gets released from juvenile detention and becomes the subject of Ana's secret investigation.
Episode 2
Marta puts her relationship with Eneko at risk by getting closer to Sergio, who opens up about life before the death of his parents.
Episode 3
Sergio returns to the detention center and has an unexpected encounter there. Thanks to Marta, Ana discovers information that may turn the case around.
Episode 4
When the investigation wavers, Ana discovers that she and Sergio share more in common than she thought. A determined Sergio tries to find his sister Noa.
Episode 5
Pressure from Cabrera forces both Sergio and Greta to make desperate moves. Eneko tries to reconcile with Marta. The case threatens Ana's personal life.
Episode 6
Ana turns up at Sergio's house, and he insists on meeting Noa. The police try to close the case for good while a leak exposes Cabrera's methods.