Alors que Joe Glass, commandant du sous-marin américain USS Arkansas, est en mission de sauvetage dans la péninsule de Kola pour retrouver l'USS Tampa Bay porté disparu, le Président russe Nikolai Zakarine est fait prisonnier à la base navale de Poliarny suite à un coup d'État mené par l'Amiral Dmitri Durov, son propre Ministre de la Défense. Le Commandant Glass et son équipage vont devoir faire équipe avec une unité de Navy SEALs et se rendre en Russie afin de sauver le président russe et empêcher la Troisième Guerre mondiale....
Après avoir quitté la Marine nationale française, Jacques-Yves Cousteau veut se lancer dans l'exploration sous-marine. En 1950, il loue le bateau Calypso à un riche britannique. Le « commandant » part alors aux quatre coins du Monde, avec sa femme Simone et notamment Albert « Bebert » Falco. Ses deux fils, Philippe Cousteau et Jean-Michel Cousteau, restent en pension... Quelques années plus tard, Philippe rejoint finalement l'équipe de son père, qui tourne une série de films documentaires financés par une chaîne de télévision américaine. Philippe étant sensibilisé à l'écologie à laquelle son père est insensible, il se brouille avec lui puis, alors que les affaires de Jacques-Yves périclitent, revient auprès de lui et le sensibilise à la protection des océans et des espèces animales menacées, donnant à la carrière de son père une nouvelle orientation et un nouveau départ.
German U-boat U-571 is immobilized by a British destroyer. The US Navy submarine S-33 has been modified to resemble a German U-boat to steal the Enigma coding device and sink the U-571.
Whilst working for the CIA, Chan Ka-kui (Jackie Chan) is assigned to follow leads of a nuclear smuggling case. He follows a woman named Natasha to Ukraine, when he realizes that she had been hiding vital information, Ka-kui calls for backup and she is later arrested. However, Natasha's partner is an unknown man, who turns out to be Jackson Tsui (Jackson Liu), a Chinese American nuclear scientist with CIA links, suspected of stealing a nuclear warhead. Ka-kui follows Tsui to a restricted area, and after a trap set by Tsui, the CIA agents together with Ukrainian authorities engage in battle. Ka-kui finds a briefcase which contained evidence from Tsui, but as he is chased by unknown forces, Ka-kui loses the briefcase as he falls into frozen waters.
Opening from his point of view, a murderer looks around the city of Amsterdam at night through the canals the city is famous for. He sneaks into a Chinese restaurant's backdoor and steals a butcher knife while the cooks weren't looking. The killer finds his first victim in a local prostitute, who after refusing advances from a cab driver, gets thrown out of the cab. A baglady watches from a distance as the killer plunges the knife into the hooker and drags her back into the water. The next morning, a tour boat on the canal collides with the body of the prostitute, who has been hung on one of the small bridges. As the tourists scream, the body drags on the top of the boat until an opening shows her bloodied body and face.
A satellite reenters the atmosphere and ejects a capsule which parachutes to the Arctic, coordinates 85N 21W (approx 320 miles WNW of Nord, Greenland, in the Arctic Ocean ice pack). During an ice storm, a figure soon approaches, guided by a homing beacon, while a second person secretly watches from nearby.
During World War II, an American submarine, the Thunderfish, under the command of Cmdr. John T. "Pop" Perry (Ward Bond), takes on a group of children and nuns to transport them to Pearl Harbor. including a newborn infant nicknamed "Butch". The sub sights a Japanese aircraft carrier and attacks, but its torpedoes fail to explode. Pursued by the carrier, the sub manages to escape.
H. L. Hunley takes his ship, the H.L. Hunley, out in the Charleston, South Carolina harbor and it sinks with all hands. As the blockade still needs to be broken, Brig. Gen. P. G. T. Beauregard has the ship raised and puts George E. Dixon in charge. He starts looking for a crew and after some difficulty, finally finds enough volunteers to man it. They practice cranking the propeller. The crew don’t all get along with each other. Dixon flashes back to the Battle of Shiloh, where a gold coin given to him by his wife (who was later killed in a steamboat explosion caused by a drifting mine), deflected a bullet and saved his life. They take the ship down and sit on the bottom to see how long they can stay down and almost get stuck. The Union navy is warned about the sub. The crew votes that if after an attack they are stuck on the bottom, they will open the valves, flooding the ship rather than suffocate. They go out to attack the U.S.S. Wabash, but the attack fails. Following the warning the ship has draped metal chain netting over the side. Also the rope which was attached to the ‘torpedo’ they were to release under the ship gets loose and becomes entangled in the propeller. It has to be cut loose while sailors on the Wabash shoot at the Hunley. Beauregard proposes putting the torpedo at the end of a long spar. The USS Housatonic is ordered to change its position in the harbor and always be ready to steam, meaning it can’t hang metal netting over the side. The second in command Lt. Alexander is ordered to Mobile, Alabama and a young soldier who had been volunteering to join the crew is allowed to do so. On February 17, 1864, the C.S.S. H. L. Hunley sails out and attacks the U.S.S. Housatonic. The torpedo is rammed into the side of the ship. It blows up and the Housatonic is the first ship ever sunk by a sub. A bullet from the ship breaks a window in the conning tower and wounds Dixon. The explosion opens the seams on the Hunley and it takes on water. It settles to the bottom and they can’t release the ballast or pump the ship. As agreed the crew opens the valves and the ship floods, killing the entire crew.
The Royal Navy is concerned about constant attacks on convoys by German submarines and having to keep "half the fleet" watching for the German battleship Tirpitz. The Tirpitz is 60 miles from the sea inside a Norwegian fjord and attempts by the Royal Air Force to sink her have failed. Commander Fraser (Mills) is determined to prove that an attack by human torpedoes is practical, despite scepticism from the higher echelons that such an operation would be feasible.
The story begins with a dramatisation of the Italian manned torpedo raid on Alexandria (1941) in which two British battleships were damaged. The British are worried that this new Italian tactic will give the enemy naval supremacy in the Mediterranean. From Spain, an Italian expert on underwater operations is secretly watching the British base in Gibraltar and planning new attacks.
Alexandria December, 1941. Two Italian frogmen are captured under suspicion of placing a mine under the HMS Valiant. They are brought onto the ship for questioning.
Un homme est retrouvé assassiné sur la Tamise, l'arme du crime est un fusil-harpon, signature du mystérieux « requin » que Scotland Yard traque sans succès.
During World War II, Navy Lt. Cmdr. John Lawrence (Richard Widmark), a strict disciplinarian, is put in charge of Underwater Demolition Team 4 after its former leader, Lt. Cmdr. Jack Cassidy, is killed in action. The unit's men are distrustful of the professionally aloof Lawrence, and the relationship immediately takes a turn for the worse when they brawl with sailors aboard their transport ship. The ship's captain, Lt. Cmdr. Pete Vincent (Gary Merrill), understands the natural resentment the elite UDT men feel over the death of Cassidy, which they have transferred to Lawrence, and offers to go easy on the team at captain's mast. The "by-the-book" Lawrence, however, elects to hold his own mast and disciplines the entire team just before a dangerous reconnaissance mission to ascertain the safest landing beach during an upcoming invasion of a Japanese-held island. Lawrence is scornfully perceived as afraid when he splits up the platoon and puts team executive officer Lt. Klinger in charge of a diversion to the more dangerous beach, where the main landing is scheduled.
Robinson (Jude Law), a veteran captain of under-sea salvage who is recently divorced and estranged from his young son, receives news that he is to be made redundant. He receives £8,000 for his services and is asked to clean his desk and leave the premises.