In Thor's formulaic ninth Scot Harvath thriller (after The Apostle), the ex–navy SEAL has lost his job with the disbanding under a new presidential administration of the Apex Project, a Department of Homeland Security secret antiterrorist program that didn't worry about obeying any rules. Fortunately, Harvath lands on his feet with the Carlton Group, funded covertly by the Department of Defense, with an identical mission. After a bus full of Americans is blown up in Rome, Harvath travels to Europe to track down a man known as the Troll, who's been implicated in the bombing. Meanwhile, John Vaughn, a Chicago cop who somehow moonlights as an attorney for private clients, seeks to identify the Middle Eastern–looking man who ran down a woman with his cab. Predictably, Vaughn uncovers a plot against civilian targets in Chicago. Bumbling CIA agents make members of the secret Carlton Group look even more heroic. Fans of TV's 24 may enjoy the over-the-top setups, but even they might wish for a little more sophistication. (July)