They'll do anything to save their son's life...even work together. Their marriage is nearly over. But then Deputy US Marshal Allison Chen-Boyd and FBI hostage negotiator Henry Boyd learn their eight-year-old son has been kidnapped. They'll work together - temporarily, of course - to capture the dangerous cartel hell-bent on vengeance. But as danger mounts and bombs lurk around every corner, they'll have to learn to trust each other again to save their embattled family.