The Weapon — David Poyer

As a member of TAG Charlie -- an elite team of active-duty sailors, SEALs, and civilian analysts -- United States Navy Commander and Medal of Honor winner Dan Lenson must defuse emerging naval threats around the globe. The deadly Skhval K, an unstoppable rocket torpedo designed to destroy U.S. aircraft carriers, definitely qualifies.

When the Skhval-K is demonstrated at a Moscow arms show, Dan tries to buy one so that the U.S. Navy can build countermeasures. But when the Russians sell the new weapon to Iran and China instead, Dan decides that if he can't buy it, he'll steal it…

When a daring nighttime penetration of Iran's largest naval base goes wrong, Dan finds himself captaining a submarine he barely knows how to submerge -- while being pursued by Iranian destroyers and sub-hunting aircraft through the hazardous Persian Gulf. Never mind the weapon and the balance of power in the Mideast. This time, Dan will be lucky to escape with his life…