The Sea Hawk (1942)

When a small outpost is ambushed, a US Army squad must take the battle below ground on a high-stakes mission in a new type of warfare the likes of which they have never seen.

Inspired by the real-life German special operations unit KG 200 that shot down, repaired, and flew Allied aircraft as Trojan horses, "Wolf Hound" takes place in 1944 German-occupied France and follows the daring exploits of Jewish-American fighter pilot Captain David Holden. Ambushed behind enemy lines, Holden must rescue a captured B-17 Flying Fortress crew, evade a ruthless enemy stalking him at every turn, and foil a plot that could completely alter the outcome of World War II.

A first-time captain leads a convoy of allied ships carrying thousands of soldiers across the treacherous waters of the "Black Pit" to the front lines of WWII. With no air cover protection for 5 days, the captain and his convoy must battle the surrounding enemy Nazi U-boats in order to give the allies a chance to win the war.

The captain of a submarine sunk by the Japanese during WWII is finally given a chance to skipper another sub after a year of working a desk job. His singleminded determination for revenge against the destroyer that sunk his previous vessel puts his new crew in unneccessary danger.

At the height of Hitler's infamous U-boat war, the crew of the U.S.S. Swordfish were heading home after months at sea. They never made it. Now prisoners of war aboard U-boat 429, a small group of American survivors will find their loyalties put to the ultimate test when they're forced to join their German captors to fight for their very lives.

A rogue submarine captain pulls together a misfit crew to go after a sunken treasure rumored to be lost in the depths of the Black Sea. As greed and desperation take control on-board their claustrophobic vessel, the increasing uncertainty of the mission causes the men to turn on each other to fight for their own survival.

The crew of the American destroyer escort, the USS Haynes, detects a German U-Boat—resulting in a prolonged, deadly battle of wits.

During WWII, Duke E. Gifford is second in command of the USS Thunderfish, a submarine which is firing off torpedoes that either explode too early or never explode at all. It's a dilemma that he'll eventually take up personally. Even more personal is his quest to win back his ex-wife, a nurse; but he'll have to win her back from a navy flier who also happens to be his commander's little brother.

When Russia's first nuclear submarine malfunctions on its maiden voyage, the crew must race to save the ship and prevent a nuclear disaster.

Mr. Roberts is a Navy officer who's yearning for battle but is stuck in the backwaters of World War II on a non-commissioned ship run by the bullying Captain Morton.