Tier one

Sinopse

John Dempsey's life--as an elite Tier One Navy SEAL named Jack Kemper--is over. A devastating terrorist action catapults him from a world of moral certainty and decisive orders into the shadowy realm of espionage, where ambiguity is the only rule. His new mission: hunt down those responsible for the greatest tragedy in the history of the US Special Ops and bring them to justice. -- amazon.com