Plot Summary:With Camilo retired and Hector pronounced dead, Lucia joins the school staff, and new philosophy teacher Alecia arrives. Meanwhile, adults chide Lucas for reporting a monster in the woods who raids the kitchen at night; the kids lay a trap for this cookie monster and get a result. The investigative teens, having lost their bid for freedom and forced to stay together, turn against one another after hearing a traitor walks among them. Fermin quickly rids the school of another spy. Rebeca's arrest of another escaped war criminal turns up another connection at the school. Elsa, with Hector gone, proposes becoming Marcos' and Paula's new legal guardian. Martin continues to reject Rebeca, claiming no special reason. Psiquiatra keeps Maria institutionalized. Marcos discovers his mom was recently at the school. An ill omen of old reappears in the woods.
