U.S. Army Ranger Sergeant Tom Dunn's newest squad member has a dark secret. And a plan.Nazi Germany's V2 rockets are streaking down on London, indiscriminately killing civilians. The Allies are desperate to find out how the weapons work. Dunn and his British counterpart, Commando Sergeant Malcolm Saunders, are assigned separate, but related missions. Albert Speer, the Nazi Minister of Armaments, is transporting ten completed V2 rocket engines to another manufacturing facility for installation into the deadly rockets. Thanks to Bletchley Park's Ultra intelligence, the Allies know all about it. Dunn and his squad earn the assignment to intercept the rocket engines in western Germany.Meanwhile, Saunders and his men parachute into Poland, south of Warsaw, to retrieve a captured V2 rocket gyroscope as well as schematics for the rocket obtained by the Polish Resistance. His wedding day is a week away and he promised Sadie he'll be there on time, but something goes wrong. Separated from his squad, he scrambles to reunite with his men in time to catch the only way home, but meets one obstacle after another.From their first moment in Germany, as Dunn's men execute their mission, things go inexplicably wrong. Betrayed by one of his own, Dunn must rely on his quick thinking to get his men out of an impossible situation so they can complete their mission and capture the extremely valuable Nazi V2 rocket engines.In the sixth book of the Sgt. Dunn series, Munsterman continues to masterfully blend history with action-packed plots in another of his fast-paced WWII Action Thrillers.