Someone is killing the world’s leading experts on robotics and artificial intelligence. Is it a tech company trying to eliminate the competition, or is it something even more sinister? After all, artificial intelligence may be the deadliest combat game changer since the creation of gunpowder. It’s an irresistible lure for most, but not for the Gray Man. His quest for a quiet life has led him to Central America, where he and his lover, Zoya Zakharova, have assumed new identities. With a list of enemies that includes billionaires, terrorists, and governments, they need to keep a low profile, but the world’s deadliest assassin can’t expect to hide out forever. Eventually, they’re tracked down and offered a job by an old acquaintance of Zoya’s. They reject the offer, but just being seen with him is enough to put assassins on their trail.