A deadly new weapon hits the international arms market---and the only way to preserve the balance of power in the Mideast is to hijack the Iranian sub that carries it.

United States Navy Commander and Medal of Honor winner Dan Lenson has been handed another outside-the-box assignment. TAG Charlie, an elite team of active-duty sailors, SEALs, and civilian analysts, is tasked to investigate and defuse emerging naval threats around the globe. When the Skhval-K---an unstoppable rocket torpedo designed to destroy U.S. aircraft carriers---is demonstrated at a Moscow arms show, Dan tries to buy one so that the U.S. Navy can build countermeasures. But he’s lucky to escape with his life when he’s set up by Russia’s new counterespionage service.

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. But when a daring nighttime penetration of Iran’s largest naval base goes wrong too, Dan finds himself captaining a submarine he barely knows how to submerge, pursued by Iranian destroyers and sub-hunting aircraft through the shallow, hazardous Persian Gulf.

Authentic action and daring espionage combine in a timely thriller set in a hair-trigger military environment.