Presents a mix of interrelated stories: a Mexican policeman finds himself and his partner caught in an often deadly web of corruption; a pair of DEA agents work undercover in a sordid and dangerous part of San Diego; a wealthy drug baron living in upscale, suburban America is arrested and learns how quickly his unknowing and pampered wife takes over his business; and the U.S. President's new drug czar must deal with his increasingly drug-addicted...

Marcus Burnett is now a police inspector and Mike Lowery is in a midlife crisis. They unite again when an Albanian mercenary, whose brother they killed, promises them an important bonus.

Although he's set to retire and looking forward to it, Marcus agrees to help his old partner one last time to discover and stop whoever has been attempting to assassinate Mike. Now the "old guard", they work with a new division of hotshots on the Miami PD called AMMO -- and find themselves hunting the head of the Aretas Cartel.

Earl Stone is a man in his 80s who is broke, alone, and facing foreclosure of his business when he is offered a job that simply requires him to drive. Easy enough, but, unbeknownst to Earl, he's just signed on as a drug courier for a Mexican cartel. Even as his money problems become a thing of the past, Earl's past mistakes start to weigh heavily on him, and it's uncertain if he'll have time to right those wrongs before law enforcement, or the cartel's...