It's 2004. DEA agent Art Keller has been fighting the war on drugs for thirty years in a blood feud against Adan Barrera, the head of El Federacion, the world's most powerful cartel, and the man who brutally murdered Keller's partner. Putting Barrera away costs Keller dearly - the woman he loves, the beliefs he cherishes, the life he wants to lead. Then Barrera gets out, determined to rebuild the empire that Keller shattered. Unwilling to live in a world with Barrera in it, Keller goes on a ten-year odyssey to take him down. The Cartel is a true-to-life story of power, corruption, revenge, honour and sacrifice, as one man tries to face down the devil without losing his soul.