With the arrival of a new principal and his kids - Ari, Mencia and Patrick - comes a new mystery after Ari is found close to death. The story picks up with a new school term at Las Encinas, as well as a new director (Diego Martin): one of the most powerful businessmen in Europe, ready to bring the Las Encinas institution, which, according to him, has been running amok in the past few years, back on track. He brings his three children with him (Carla D?az, Martina Cariddi, Manu Rios): three teenagers too used to always get their own way, and to have what they want when they want, no matter who falls, and who will jeopardize the union and strong friendship of the students who have stayed at the school.