Two hired assassins working for a Mexican cartel are faced with something unimaginable: they get to custody a 10-years-old girl, the daughter of the head of their rival clan, who has kidnapped the son of their boss. The situation is terrible: or an exchange takes place, or somebody will have to carry out a job that no amount of blood on their hands could ever have prepared them for.

When a Pulitzer Prize-winning reporter is killed in a mass murder in a Barcelona hotel room, maverick reporter Dan Kovaks, the dead journalist's brother, launches an investigation all his own. But now he and his hard-driving producer, Alejandra Velor, are being hunted by the killers and a vast network of government agents on both sides of a military conflict brewing in North Korea. But who's working for whom and who can be trusted? Those are the questions troubling Dan and Alejandra as they fight to stay alive and unravel the mystery of a super-secret item dubbed the "Mega-Bill."