In order to free his family from financial worries, Marc Duval (Gilles Lellouche - Mesrine: Killer Instinct, Little White Lies, Tell No One), a Frenchman expatriated to Gibraltar, becomes a spy for French customs. From petty trafficking to shady cargo, he progressively wins the trust of Claudio Lanfredi (Riccardo Scamarcio - Loose Cannons), a powerful cocaine importer tied to the dangerous Columbian cartels. This in-depth immersion in the world of drug trafficking forces Marc to take increasing risks. But, as he rises in the cartel hieractchy, he also discovers easy money, temptation and a luxury lifestyle. Permanently living on a knife edge, only his lies keep him alive. When the English customs join the game to arres Lanfredi, it becomes even more dangerous and Marc's family risks paying the price.