Commander Battle and the Atomic Sub #6

When a mysterious empire beneath Antarctic ice launches a devastating aerial assault on America, Commander Bill Battle and the Atomic Commandos must contend with otherworldly weapons and invaders unlike anything their military has faced before. As the Antarcs press their advantage toward the White House itself, Battle devises a desperate plan to turn the tide—but success hinges on facing down these alien warriors head-on. It's a race against the clock as the fate of the nation hangs in the balance.

PFC Don Clarke gets more than he bargained for when a nap on a harbor raft turns into an unexpected encounter with an enemy submarine that's slipped past the defensive nets. Stranded at sea with only his wits and a coil of rope, Don devises a clever way to mark the sub's location for Allied forces. It's the kind of action-packed break that might finally give him something exciting to write home about.