Hunter, Hunter...What's My Game?

What would you do if your family is missing and you are challenged to play a real-life game to find them?
That’s the dilemma Marc Woodcock finds himself involved in; only he’s not a detective, he’s an engineer. On top of that, his boss and long-time friend, Bob Simpson’s wife has also disappeared.
So how do they go about playing the game—and winning? Can they find their loved ones before anything else happens to them?