4. Adrenaline, by Jeff Abbott
What if you lost everything in a single moment? In Adrenaline, Abbott's protagonist Sam Capra is a young and promising CIA agent, happily married to his 7-months-pregnant wife. One day she calls him at work and tells him to leave the building. He does, and it immediately explodes. Capra is branded a traitor, and embarks on a harrowing quest to find his kidnapped wife and child and clear his name.