"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 battlefield gamechanger since the creation of gunpowder. The first nation to field weapons that can act at the speed of computer commands will rule the battlefield.
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."