It is April, 1942. Lieutenant Freddie Taylor and some crew of the submarineSea Tiger are given a week's leave after an unsuccessful patrol. Leading Seaman Hobson goes home to save his marriage, while a reluctant Torpedo Gunner's Mate Corrigan departs for his wedding in London. When the crew are recalled early Corrigan is relieved, though later regrets not completing his marriage. Sea Tiger has been assigned the top secret mission to sink Nazi Germany's new battleship, the Brandenburg, before she transits the Kiel Canal for sea trials in the Baltic Sea. Sea Tiger must put to sea immediately. Crossing the North Sea, the submarine picks up three shot-down Luftwaffe pilots from a rescue buoy, and prevents their radio alert to German forces. When the submarine enters a minefield, an airman panics and reveals the Brandenburg is further ahead than thought. The German airman is attacked by another airman and subsequently dies. Taylor decides on a desperate gamble to pursue the Brandenburg into the German-controlled Baltic Sea. When the Brandenburg is spotted, Sea Tiger fires all its torpedoes, but dives before assessing their impact due to German destroyers dropping depth charges. By expelling oil and other debris including the body of the German airman, Taylor deceives the Germans into believing that the submarine has sunk. Although successfully escaped Sea Tiger no longer has enough oil to reach Britain. Taylor decides to have his crew abandon ship on a Danish island. Hobson, a former merchant seaman who speaks German and knows the port on the island, persuades Taylor to let him go ashore and search for oil. He succeeds and Sea Tiger enters the harbour under cover of darkness, using Hobson's intelligence about the harbour depth. Aided by friendly Danish sailors they refuel while Hobson and other crewmen hold off the German garrison. Although Pincher is killed and Oxford and Lieutenant Johnson are wounded, they get back to the re-fuelled submarine and flee the port. On returning to Britain the crew learn they sank the Brandenburg, and are elated at the Admiralty's welcoming pennant: "Well done, P61". Waiting for them are Corrigan's fiancée and Hobson's wife and son.
Cast
Production
We Dive at Dawn was filmed at Gaumont-British Studios in London, with the co-operation of the British Admiralty. John Mills prepared for his role as the captain of Sea Tiger by sailing in a submarine on a training mission down the Clyde. He recalled a crash dive:
The ship then seemed to stand on her nose and I felt her speeding like an arrow towards the sea bed; charts and crockery went flying in all directions; I hung on to a rail near the periscope trying to look heroic and totally unconcerned; the only thing that concerned me was the fact that I was sure that my face had turned a pale shade of pea-green.
Exterior shots of the submarines P614 and P615 were used for Sea Tiger. The vessels were a Turkish S-class submarine that had been part of a consignment ordered by the Turkish Navy from the British companyVickers in 1939. But with the outbreak of World War II, the four boats were requisitioned by the Royal Navy and designated the P611 class in the British Fleet. They were similar in design but slightly smaller than the British S class, although with a higher conning tower. The S-class boat also appears in the film.
Video
The film has been issued on VHS by Madacy Records and Timeless Multimedia among others, and on DVD by ITV DVD and Carlton.
