Two teenagers, who look exactly the same, but never met before, are changing places during holidays in a theme park.

A young woman. Young skin, old stare, messy hair and an outsized parka. She has been living in a psychiatry for the last two years. After being released, she tries a restart as a journalist alongside her best friend Jonathan.

11-year-old Rocca, a clever, creative and brave girl who lives all by herself in defiance of her teachers and the authorities has to fight to keep her independence and prove to everyone that a child also has the power to change the world.

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.