Against All Enemies

New York Times bestselling author John G. Hemry's concludes his dramatic sci-fi JAG in Space series with a mission that will push a young officer to the edge.
After surviving several harrowing adventures on his extended tour as Legal Officer aboard the USS Michaelson—newly promoted full Lieutenant Paul Sinclair is looking forward to some sorely deserved shore leave. Unfortunately, as has happened so many times before, duty intervenes.
A violent group of religious fanatics has hijacked an asteroid that could cause an extinction-level event on Earth. Soon, the largest armada in history with starships from several world powers in uneasy cooperation converges on the killer rock. Then, the tension explodes when the South Asian Alliance opens fire, leading to an all-out massacre—and raising Sinclair's well-honed suspicions.
During the engagement, the Alliance acted as if they had the Michaelson's rules of engagement. But how? Sinclair's instincts are proven right when he's tasked to go undercover for NCIS and find a traitor. Now, with no law or court to back him, Sinclair is the only one who can see justice done.
"Hemry's real-world experience gives the investigation and subsequent courtroom scenes a convincing feel. If you crave a legalistic space-Hornblower, you'll enjoy this one." —Analog
"Hemry concludes an exceptionally thoughtful and intelligent series on a strong note." —SF Reviews