Following the student rebellion over the death of Elías, Las Cumbres Boarding School has become harsher and more hostile than ever. But now that Amaia and Paul know that Adèle has seen Manuel alive, they won't rest until they find him.

After finding out who kidnapped Manuel, Paul and Amaia keep their eyes on the culprit. Their tireless pursuit takes them to sinister locations where they discover a great mystery surrounding León... and perhaps Inés too?.

The students, increasingly beaten down by the measures inflicted on them by the boarding school, find proof that would prove everything to the police. How can they get it to the outside world from inside this prison?

The incessant struggle to expose all the secrets the boarding school keeps hidden eventually leads the students to an even greater revelation… Who is Inés, really? And what does she have to do with what's happening to them in there?

While continuing their investigation into Inés and León's true identities, an unexpected arrival surprises the students, putting all their plans on hold.

Manuel's return to the boarding school arouses Paul's suspicions. Is his behaviour a natural reaction to the traumatic experience he's been through, or is he hiding something?

Frustrated at not being able to report Corax's crimes, the kids react with anger. They'll soon discover that their worst nightmares might just become a reality.

Lights in the sky have always been a bad omen. And tonight, the sky is filled with lanterns.