Texas Deputy Sheriff John Cronin and his granddaughter Jesse Miller have out-stubborned, out-fought, and out-lived every challenge life's thrown at them so far... But there are times when a little help is needed. Slowly recovering from being stabbed, John Cronin gets a tip from inside the very cartel that's hunted him, that plans are afoot to smuggle terrorists and missiles across the border. Meanwhile, Jesse and her husband Gunny Sgt. Miller are losing the battle with an administration and a military bureaucracy determined downsize the military by whatever means possible, and tie their hands...