Best movies like U-Boat Prisoner

The Unseen Enemy in this wartime meller is Nick (Leo Carrillo), the outwardly effusive manager of a San Francisco waterfront café. To make enough money to ensure his daughter Gen's (Irene Hervey) entree into society, Nick sells his services to a gang of foreign spies, who then use Nick's establishment as a rendezvous point. The plan is to covertly send out a Japanese vessel for the purpose of raiding and destroying American merchant ships. The spies' secret code is hidden in the lyrics of a song called "Lydia", which the unwitting Gen performs on request day after day.

The Unwritten Code is an offbeat, better-than-average Columbia wartime "B" picture. Though Ann Savage and Tom Neal are top-billed, the central character is supporting-actor Roland Varno. He plays a Nazi spy who sneaks into the U.S., hoping to release hundreds of German prisoners. He fails, but not until plenty of bullets have been spent. The most interesting aspect of The Unwritten Code is the casting of Savage and Neal as the "good" characters: in 1945, these two cult favorites would play the decidedly unsavory protagonists of the film noir classic Detour.

A gripping tale of WWII naval warfare in the Baltics, starring John Mills as Lt. Freddie Taylor, a British submarine Captain. The crew of the Sea Tiger are summoned from leave on shore with their families, and sent on a secret mission to intercept the Nazi battleship Brandenburg. In the ensuing battle the British submarine is damaged by a German destroyer. The submarine is leaking fuel so badly that the crew won't be able to make it back to Britain before running out somewhere along the Danish coast. When it seems that their only option may be to blow up the submarine and try to escape to Denmark, seaman James Hobson hatches a plan...

A World War II drama-documentary showing the struggles of Merchant Navy seamen following an attack by a U-Boat. Western Approaches is a vast area of ocean control covering thousands of square miles of the Atlantic. In these waters is set this single incident in the fiercest and longest sea battle in history. The players are not professional actors but serving officers and men of Allied Navies and Merchant Fleets. This film is dedicated to them and their comrades who made the Allied victory possible.

A U.S. Navy crew aboard a merchant marine ship battle Nazis.

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.

An English refugee and a street thug go to military school together.

Merchant Marine sailors Joe Rossi (Humphrey Bogart) and Steve Jarvis (Raymond Massey) are charged with getting a supply vessel to Russian allies as part of a sea convoy. When the group of ships comes under attack from a German U-boat, Rossi and Jarvis navigate through dangerous waters to evade Nazi naval forces. Though their mission across the Atlantic is extremely treacherous, they are motivated by the opportunity to strike back at the Germans, who sank one of their earlier ships.

A young, Scottish RAF gunner is debriefed by French officials about his escape from Nazi-occupied territory. They are particularly interested in one person who may or may not have been a German agent.

A tale of life on board a Royal Navy cruiser assigned to protect the vital convoys between America and England during WWII.

In the frozen, war torn landscape of occupied Poland during World War II, a crack team of allied commandos are sent on a deadly mission behind enemy lines to extract a rocket scientist from the hands of the Nazis.

On the eve of their return to the states, the crew of the U.S.S. Blake is unpleasantly surprised when their new captain, Lt. Commander Hale, announces that they've been reassigned to the upcoming invasion of Okinawa. With the news turning the crew against him, Hale must rise to the occasion to keep his men inline.

A bunch of waterfront youths pursue the Sea Raiders, a gang of saboteurs.

Panic arises among Allied POWs aboard a Japanese freighter when they learn that the ship is actually a decoy target for American submarines on night patrol. The prisoners unite and attack their Japanese captors just as an American sub surfaces and, not knowing the prisoners are aboard, prepares to torpedo the ship.

At the start of World War II, Cmdr. Ericson is assigned to convoy escort HMS Compass Rose with inexperienced officers and men just out of training. The winter seas make life miserable enough, but the men must also harden themselves to rescuing survivors of U-Boat attacks, while seldom able to strike back. Traumatic events afloat and ashore create a warm bond between the skipper and his first officer

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 WW2. 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.

An intrepid radio reporter sets out to track down and expose Nazi agents.

The story concentrated on a group of test pilots, busily experimenting with a revolutionary all-plastic airplane. Ace flyboy Brad Farrell (Richard Arlen) is determined to prove the practicality of the new aircraft, designed by Professor Blake (Thomas Ross), father of Brad's sweetheart Carol (Jean Parker). Back on solid ground, Brad must vie for Carol's attentions with his own brother, engineer Doug Farrell (Don Castle).

A German submarine is sent to the Orkney Isles in 1917 to sink the British fleet.

A Newfoundland fishingboat comes to the aid of a wrecked Danish sailing ship and tows it to a small village, but eventually the captain of the fishingboat realises that it's a U-boat supply ship in disguise, loaded with torpedoes. So, together with his crew and a group of villagers he sets about a plan to blow the ship as well as any U-boats that approach it. Based on the novel "The Gaunt Woman" by Edmund Gilligan.

Medical researchers Jerry Evans and Walt Hedges are assigned by a pharmaceutical company to work at a secret laboratory on a remote South Pacific Island in order to produce penicillium, the mold from which the magic drug penicillin is derived.

A paratrooper drops behind enemy lines to rescue the deposed king of a mythical Balkan nation.

FBI agents Carl Becker and John Trent raid a New York hotel, sending Nazi spies to an upstate hunting lodge.

Marianne Jannetier, a well-to-do Parisian, engaged to Andre Benoit, a high-ranking government official, flees the city when the goose-stepping Nazi storm-troopers arrive. When her mother dies on the road to Bordeaux as a result of Nazi bombing, she returns to Paris and joins the underground movement. Nicholas Jordan, an American member of the RAF, stranded in Paris after the evacuation is also working with the Paris underground. Marianne kills her former fiancée, a pro-Nazi informant, for the traitorous state papers he is carrying, and she and Jordan try to flee over a French seaport...

Someone has absconded with $4,000,000 worth of diamonds, and that someone may very well be a passenger on the Bombay Clipper.

During the Second World War a British schoolteacher working in Denmark is caught up when the Germans invade.

American naval forces are using a port in Iceland as a base for anti-submarine patrols to protect North Atlantic convoys from Nazi subs. The Nazis send undercover agents into the port in a scheme to blow up the entrance to the harbor and keep the patrols blocked in. The officers in charge of the patrols have to find the spies and stop them before they achieve their objective.

A Yank comes to Havana in search of an old friend who disappeared during the Cuban Revolution, and discovers a group of Batista sympathizers plotting to overturn Castro.

Detective Ellery Queen aids Free Dutch agents battle Nazi spies over a prize of industrial diamonds.

Made during the early days of sound cinema, this tense submarine adventure is an intriguing example of a hybrid silent-talkie. A disgraced English sub commander changes his name to Burke and joins the American Navy. When the U.S. submarine on which he is serving as a torpedo launcher begins to sink, Burke must make the ultimate sacrifice to save as many crew men as possible..

During the last days of World War II, Germany, desperate for any last grasp to defeat the allied powers, looked to their last remaining weapons and soldiers. The German Navy and the last remaining U-Boats were formed together for one desperate last mission – a mission to attack the United States Homeland, known as Operation Seawolf. Captain Hans Kessler, a grizzled submarine commander from both World Wars, is called into service to make one mission a success and help turn the tide of the war.

In this espionage caper, a government spy must keep enemy agents from spying upon a defense plant. His work is made easier by his newest invention, a word scrambler which makes it difficult for the enemy agent.

Submarine commander Ken White is forced to suddenly submerge, leaving his captain and another crew member to die outside the sub during WW II. Subsequent years of meaningless navy ground assignments and the animosity of a former sailor, leave White (now a captain) feeling guilty and empty. His life spirals downward and his wife is about to leave him. Suddenly, he is forced into a dangerous rescue situation at the start of the Koren War.... reassigned to the same submarine where all of his problems began.

Based on a true incident that occurred in 1942 when nine Nazi saboteurs were put ashore on the coast of Long Island, New York, by submarine, with orders to blow up various defense installations.

On the night before he sails in search of the steamship Arcadia's sunken gold, Paul Sinclair (Bruce Bennett)meets Madeliene Nielson (Anita Louise) in a San Francisco nightclub. On the second day at sea, Madeliene turns up as a stowaway. While diving and searching for the sunken gold, off the Phillipines, Paul discovers that a foreign-country submarine has been laying mines in order to completely cut off the Phillipines from American protection.