The series follows the story of two siblings who witness the murder of their parents in the hands of one of the drug cartels in Mexico, after this murder, Roxana Rodiles the younger sister of Alejandro Ferrer is kidnapped. 25 years later, Alejandro Ferrer is now the captain of the Federal Police and only seeks revenge against the narcos for destroying his family. Roxana that after 25 years disappeared and ignoring that her brother is Alejandro enters a business of buying and selling diamonds. However, everything will be reduced when the interpol that silently followed the trail of money tries to capture it. After being detained and interrogated, Roxana enters the prison of Las Dunas, a boarding school with almost unique characteristics throughout Mexico, since it simultaneously houses, although in different pavilions, men and women deprived of liberty for being accused or condemned. for the most diverse crimes. Alejandro knowing this is responsible for sending Daniel Laborde, as an infiltrated agent who will try to fall in love with Roxana to obtain information, after several misunderstandings between the two siblings and without knowing they are relatives, they will try to destroy the narcos.
Les parents d'Alejandro et Adelaïda Ferrer ont été sauvagement assassinés par les membres d’un cartel alors qu’ils étaient petits. Pendant le meurtre, un membre du cartel a décidé d’emmener Adelaïda avec lui et ses hommes sans savoir qu’Alejandro était en train de jouer non loin de la maison. Quelques années plus tard, Alejandro est devenu Capitaine de la police fédérale mexicaine et poursuit les cartels qui sévissent à Ciudad Juarez. Adelaïda est devenue Roxana Rodiles, une très belle femme, élégante, raffinée et mariée à Federico Montalvo, un riche homme d’affaires. Ils vont rapidement se retrouver chacun d'un côté de la loi...
Un operativo para desmantelar a un poderoso cartel sale mal cuando un detective encargado de infiltrarse termina enamorandose de una de sus miembros y poniéndose al margen de la justicia.
Roxana e Alejandro foram separados ainda crianças e após 25 anos estão em lados opostos da lei. Ela foi criada pelo cartel Mil Cumbres. Ele se tornou um agente federal.
Separados ainda pequenos e sem saber de seu parentesco, dois irmãos lutam um contra o outro em uma guerra envolvendo drogas, crimes e traições.