A young armor officer leading his tank company into battle and a fiery close air support pilot and her squadron join forces to defeat a terrifying enemy!

In the explosive follow-up to Steel On Target, Captain Mike Sandhurst leads his newly-formed armored cavalry troop into the heart of the war on Heske. As the Buzzers mass their forces for a devastating daylight assault, Sandhurst believes his unit has time to regroup on the edge of the battlefield. But no plan survives enemy contact, and the Buzzers are far more cunning than anyone anticipated.

Meanwhile, Lieutenant Vivian Llewelyn and the Thunderbolts have deployed to Heske, ready to strike. After a successful campaign with their newly christened Ospreys, the Thunderbolts are battle-hardened, but internal discord threatens to unravel their effectiveness. With a new executive officer causing chaos in the ranks, they teeter on the brink of disarray just as the enemy closes in.

When the Buzzers launch their all-out assault, Sandhurst and Llewelyn are thrust into a brutal fight for survival. Earth’s forces will be pushed to their limits, with the cavalry and Thunderbolts caught in the crossfire with one of their own shot down behind enemy lines. To survive, they must adapt, tighten their bonds, and fight as one—shooting, moving, and communicating—like they’ve never done before.