A Russian submarine called Спрут ("Octopus") draws too close to the New England coast one morning when its captain (Theodore Bikel) wants to take a good look at America and runs aground on a sandbar near the fictional Gloucester Island, which, from other references in the movie, is located off the coast of Cape Ann or Cape Cod, Massachusetts. Rather than radio for help and risk an embarrassing international incident, the captain sends a nine-man landing party, headed by his zampolit (Political Officer) Lieutenant Yuri Rozanov (Alan Arkin), to find a motor launch to help free the submarine from the bar. The men arrive at the house of Walt Whittaker (Carl Reiner), a vacationing playwright from New York City. Whittaker is eager to get his wife Elspeth (Eva Marie Saint) and two children, obnoxious but precocious nine and half-year-old Pete (Sheldon Collins) and three-year-old Annie (Cindy Putnam), off the island now that summer is over.
James Bond—MI6 agent 007 and sometimes simply "007"—attends the funeral of Colonel Jacques Bouvar, a SPECTRE operative (Number 6). Bouvar is alive and disguised as his own widow, but Bond identifies him. Following him to a château, Bond fights and kills him, escaping using a jetpack and his Aston Martin DB5.
The American destroyer USS Bedford (DLG-113) detects a Soviet submarine in the GIUK gap near the Greenland coast. (Specifically, they are in Greenland territorial waters at the entrance to the J.C. Jacobsen Fjord, which is due northwest from Iceland.) Although the U.S. and the U.S.S.R. are not at war, Captain Eric Finlander (Richard Widmark) harries his prey mercilessly, while civilian photojournalist Ben Munceford (Sidney Poitier) and NATO naval advisor, Commodore (and ex-World War II U-boat captain) Wolfgang Schrepke (Eric Portman), look on with mounting alarm.
The legendary empire of the lost continent of Mu reappears to threaten the world with domination. While countries unite to resist, an isolated World War II Captain has created the greatest warship ever seen, and possibly the surface world's only defense.
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.
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.
The new, state of the art nuclear submarine Seaview is on diving trials in the Arctic Ocean. The Seaview is designed and built by scientist and engineering genius Admiral Harriman Nelson (USN-Ret) (Walter Pidgeon). Captain Lee Crane (Robert Sterling) is the Seaview's Commanding Officer. One of the on-board observers is Dr. Susan Hiller (Joan Fontaine), studying crew-related stress. The mission includes being out of radio contact for 96 hours while under the Arctic ice cap, but the ice begins to crack and melt, with boulder-size pieces crashing into the ocean around the submarine. Surfacing, they discover fire burning in the sky. After the rescue of a scientist and his dog at Ice Floe Delta, Miguel Alvarez (Michael Ansara), the sub receives radio contact from Mission Director Inspector Bergan at the Bureau of Marine Exploration. He advises that a meteor shower pierced the Van Allen radiation belt causing it to catch fire, resulting in a world-threatening increase in heat all across the Earth. Nelson's on-board friend and scientist, retired Commodore Lucius Emery (Peter Lorre) concurs that it is possible. Bergan informs Nelson that the President wants him at a UN Emergency Scientific Meeting as soon as possible.
American fashion model Anne Traymore, swimming off the isle of Majorca, loses a bracelet, which the handsome Manuel del Rio Montoya returns to her. She believes he owns a beautiful yacht called The Swan, but he merely works on it for the wealthy Rene LeClerc.
During 1964, in the months following World War III, the conflict has devastated the northern hemisphere, polluting the atmosphere with nuclear fallout, killing all life there. Air currents are slowly carrying the fallout south; the only areas still habitable are in the far reaches of the southern hemisphere.
In 1959, United States Navy Rear Admiral Matt Sherman (Cary Grant), ComSubPac, boards the obsolete submarine USS Sea Tiger prior to her departure for the scrapyard. The first commanding officer of the Sea Tiger, Sherman begins reading his wartime personal logbook and recalling earlier events
The crew of an American submarine are on a reconnaissance mission photographing Japanese installations through a periscope camera. When attacked by the Japanese (with similarities to the USS Perch) the submarine is scuttled and the crew is captured. Tortured by the Japanese, with the help of British and Australian prisoners the crew makes an escape bid to get their information to the Allies. The film ends with footage of the Battle of the Coral Sea that according to the film was made possible through the information brought back by the submariners.
American David Ross (William Holden), a former tugboat captain now in the Canadian army, is hastily commissioned in the Royal Navy and assigned to rotating command of W88, a double-crewed rescue tug then in dry dock due to battle damage. His predecessor was a suicide. The slow, poorly armed tugboats bring in "lame ducks," freighters crippled near England by German attacks. The main danger is from U-boats and aircraft.
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.
The American submarine Grayfish, under Lieutenant Commander/Commander Barney Doyle (Glenn Ford), searches for the Shinaru, one of the Japanese aircraft carriers that led the attack on Pearl Harbor. Doyle receives word that the target has an escort, including a transport ship carrying his wife and child, who were captured in the Philippines.