Assassin's revenge

"On a sunny dock in Gibraltar, Slaton returns to the sailboat he shares with his wife and young son to find them missing. The only clue to their whereabouts is a cryptic message: If he wants to see them again, he must eliminate an obscure scientist working for the International Atomic Energy Agency. Slaton races to Vienna to unravel the scheme. Half a world away, a small team of ISIS operatives arrives in North Korea. It is comprised of two suici...