Once A Spy, by Keith Thompson

“(This) darkly satirical thriller, features an unlikely, if endearing, father-son spy duo: retired appliance salesman Drummond Clark, who at age 64 suffers from Alzheimer’s disease, and Charlie Clark, a down-on-his-luck gambler who owes $23,000 to Russian loan sharks. Soon after Charlie rescues Drummond from the Brooklyn streets, where he’d been wandering, the older man’s house blows up and the two barely escape with their lives. Clark and son begin an adrenaline-fueled cross-country flight in which they must evade ruthless CIA assassins long enough to understand why they’re being targeted. During rare moments of lucidity, Drummond hotwires a car and effortlessly kills multiple assailants, suggesting to Charlie he was once much more than just a washing machine salesman. Poignant themes of love and redemption underpin an action-packed story line that includes exotic locales, high-tech gadgetry, and international intrigue.”

A good read. Might even make a good movie. Recommended.