Candela works at a logistics company while she pursues her dream of becoming a singer. Her life changes one night when a multinational record company executive hears her sing in a bar. That same night, Candela meets up with Diego, an old high school classmate of hers who is fighting to be a professional boxer.

Set in the present day, but with echoes of the Cold War, this spy thriller delves into the unknown world of "El Centro" - National Intelligence Center of the Spain (CNI). The plot begins with a murder that uncovers an international operation by the Russian intelligence services and leads the CNI members into a race against time to dismantle it, while also trying to uncover a traitor within their ranks.

Germán, an honest family man, sees how his whole world wobbles the night when, driving home, accidentally runs over two teenage girls. From that moment, Germán will have to do everything in his power to prevent his life from being destroyed forever.