The Boarding School

A new year at the Black Lagoon Boarding School starts; María escapes from a psychiatrist to work as a cleaner in a hospital.

María finds aid after she gets laid off; the girls recognize Alfonso's ring on Marcos' finger; Elsa gives Héctor the silent treatment for deciding to expel Iván on his own.

Marcos improves his standing among Iván's group when he discovers a secret passage that opens into a new world of questions.

Carolina and her friends break through a sealed door to find a maze of tunnels, and a horrifying sight awaiting them; Paula continues her friendship with the gnome.

An accident where a student gets hurt puts teacher Amelia's future at the school in question; Paula and Evelyn believe they've uncovered the identity of the Tooth Fairy.

The school mystery takes a backseat to a series of relationship problems, culminating in an announcement of a dead student in the woods.