The Italian mafia takes on the Mexican cartel on the Mexican border. The cartel has captured the son of an ex-mobster in witness protection. He calls on his mob buddies to come to Arizona to help him.

Life changed for Alejandro Reis – Alex – in just a few brief moments when he discovers that he is not an American citizen. His parents brought him across the Mexican border when he was just months old. Flora Hendricks, on the other hand is born in Missouri. She decides to run away from home. Alex finds himself deported to Mexico On a seeming parallel track, Flora is arrested for shoplifting. And put in the same deportation bus with Alex. Once on Mexican soil Alex and Flora find out quickly that they are way out of their depth. They learn quickly that Tijuana and most of the other border towns are ultra violent places that are overrun by dangerous, warring criminal factions.

10,000 Days ago, Comet 23 struck Earth with the magnitude of all the nuclear weapons in the world sending the planet into a deep freeze. Now, 27 years in the future, those who survived are locked in an epic battle of life or death.