After having a chance encounter with a mysterious character, Wendy, a young working class mother, discovers that she has super powers.
In this prequel to the TV series, the individual fates of the members of the later "Red Bracelets" and how they came together are told.
Based upon the Catalan drama series Polseres vermelles, the series focuses on a group of teenagers living together as patients in a hospital's pediatric ward.
