Javier Falcón, Chief of the Sevilla Homicide Division, must solve two different cases in a short time. In the first case he is personally involved. An old friend of his infiltrated an Islamic terrorist cell and now the group is trying to recruit his young son for their cause. The same case hits even closer at home. A war is raging between two clans in the Russian Mafia. When an important mobster tries to defect, he gets killed in a car crash. On the scene, the police find an encrypted USB stick with highly explosive information. Then the son of Falcon’s girlfriend Consuelo is kidnapped. They are contacted by both Mafia clans claiming they have the kid and wanting to get their hands on the information. And both say they will kill him if Falcon doesn’t give them the stick