Officer Angie (Mario Casas) is the leader of the 7th Narcotics Unit. Under orders from his superiors, he is to lead the narcotics unit to eradicate the drug trafficking network that has been deeply rooted in the local area. To complete this dangerous task, the help of Rafal (Antonio de la Torre) is indispensable. Rafal is not only Angie's good partner, but also an experienced old policeman. With the cooperation of Angie and Rafal, the evil forces are retreating step by step. Although not all the means used by the narcotics unit are aboveboard, they are obviously standing on the end of the scale marked with "justice". Just when the mission is about to be successfully completed, the appearance of a mysterious woman disrupts the pace of Rafal, who has always been mature and steady. Between suspicion and trust, the 7th Narcotics Unit faces an unprecedented test.