"The Gray Man" Plot Here's how Netflix summarizes the movie: "Based on the 'Gray Man' book series by Mark Greaney, the plot of the film unfolds as the CIA's most skilled mercenary (Ryan Gosling) — whose true identity is known to none — accidentally uncovers dark agency secrets and a psychopathic former colleague puts a bounty on his head, setting off a global manhunt by international assassins." Image Source: Getty / Jason Merritt / Emma McIntyre