A group of people move through a labyrinth of tunnels in the urban underground. They cut through the darkness with the multiple flashlights strapped to their bodies. During their journey, they'll have to face the dangers that lurk in the darkness and, what is worse, themselves.

Helena stops her van in an old quarry on the outskirts of the city. Looking nervous, she takes out of the trunk the body of an enormous man and gets ready to bury him. She struggles to clear the evidence but in her world nothing is that easy and problems always come back.

A romantic evening for two takes a turn for the worse when the both of them have unexpected intentions for each other.

Sergio is a teacher at the University. He is having a secret relationship with Carla, one of his students. Today Sergio canceled an exam and skipped class because he has to talk to her and offer her something very special.

Polseres vermelles and Pulseras Rojas in Spanish, is a Catalan television show. The first season aired on TV3 in 2011, with a second season planned for 2013. The show was created by Albert Espinosa and draws on his childhood experiences as a hospital patient. Espinosa and director-producer Pau Freixas had previously worked together on the film Herois. The show tells the story of a group of Catalan children and teenagers who meet as patients in the children's wing of a hospital. Themes include friendship, the will to live, and the desire to overcome adversity. The show was originally planned for four seasons, with the second one premiering on January 2013. In October 2011, it was announced that Steven Spielberg's DreamWorks and Marta Kauffman had reached an agreement with TV3 for an American remake of Polseres Vermelles. The Spanish channel Antena 3 aired the first season, dubbed into Spanish as Pulseras rojas, in summer 2012. On 11 December 2012, TV3 announced 14 January 2013 as the premiere date for its second season. Antena 3 will premiere it dubbed later in 2013.