Opening scene shows a tramp steamer listing to starboard.during World War 1. She displays "India, Greece" in large letters on her side. Slate indicates that an explosives technician from a U-Boat had climbed aboard and set charges on the Greek Steamer, "India" as she is stopped in the Atlantic during World War 1. The India is carrying a cargo of coal from Cardiff Wales, to Oran. The ship is seen listing. Smoke still rises from her stack. Slate states that the cross on the hull of the sinking "India" is the Greek national emblem. The ship sinks lower and finally slides out of sight, with smoke rising above the water from her exploding boilers. (Note: This German U-boat is the SM U-35, which was operating in the western approaches to the Straits of Gibraltar after leaving the Mediterranean on 11-12 April. It carried a professional cinematographer on board. Two years earlier, on June 12, 1915 , the U-35 also sank the British ship, "Crown of India." ) The next sequence shows an image of the German Daily Express newspaper for Monday May 10, 1915. Dead! it reports in bold print: The world has a duty to conduct a Hunt for turtles. Scene shifts to deck of surfaced German U-boat, showing a dinghy arriving alongside, from which several giant sea turtles are unloaded. Crew members examine the turtles on the deck of the submarine. At least one appears to be dead. Next scene shows lookouts on conning tower of the U-Boat, as they see smoke on the horizon. (The Imperial German Naval war flag is displayed on the conning tower.) The Captain calls for full speed ahead on both engines, and the controls show that being selected. (World War i; World War 1; WWI; WW1)
Two German officers conferring on land. Views of German U boats in the Mediterranean Sea during World War 1. Men on deck of U-Boat SM U-35 underway in the Mediterranean Sea. Men on the bridge of the U boat look through binoculars. Views of attacks by SM U-35 on several ships, including one sailing vessel with all sails up. A ship sinks after being attacked by the U boat. Crew of SM U-35 review a typed piece of paper with information on all target ships in the area. After sinking a ship, they cross off the line on the list for the ship "Brisbane River", which is listed as a 4,989 grt ship. (War records indicate the Brisbane River was sunk 17 April 1917, 140 miles west of Gibraltar.) Captain of a sunken ship being transferred from a life boat to the U-boat as a prisoner. Unterseeboot 35 strafes and torpedoes 3 other ships and all are shown sinking, including one sailing vessel. Views of German crew inside the U boat as they work on controls, view through periscope, and ready torpedo tubes. Crew also shown operating deck gun to fire on a target ship.
The British armed steamer "Parkgate" is seen from the deck of the German U-35, U-Boat, under command of Captain Lothar von Arnauld de la Periereon, on April 4, 1917, during World War 1. The Parkgate has been forced to heave to in the Mediterranean Sea, between Malta and Gibraltar, following a gun battle with the U-boat. Members of the Parkgate crew come alongside the U-boat in lifeboats. An officer of the Parkgate presents the ship's papers to the U-35 Captain, on the conning tower of the U-boat. Next, the Captain of the Parkgate is seen being taken captive, and an explosives team from the U-boat rows to the Parkgate to set demolition charges that will help sink her. the U-boat crew fires their deck gun to strike the Parkgate low at the waterline. She begins to take on water and list. Her 7.6 cm gun can be seen on the stern of the Parkgate. In final stages, the Parkgate's bow tilts upwards and she sinks, with a large detonation as her boilers explode. (World War i; World War 1; WWI; WW1)
German U boat in Mediterranean Sea during World War 1. Men on deck of British Q ship. Crew quickly uncover a large hidden deck gun and use it to fire on the German submarine. Naval guns aboard the Q ship being aimed at the submarine. Another U-boat submarine surrenders to the British Q ship. The submarine comes along side the British ship, the captain and crew of the British ship board the submarine which has all hands on deck. More views of ships being hit by German submarine torpedoes in the sea and then sinking. Explosions occur at sea and ships sink after being torpedoed.
Slate mimics The British Daily Mail newspaper, Tuesday, November 21, 1917, declaring that England must break the German U-boat blockade or be broken by it. Another slate alludes a statement by British MP Gibson Bowles to the effect that Britain's food supply is being controlled by the German submarine. Crew of a surfaced German submarine is seen on deck taking advantage of good weather to perform maintenance on their deck gun, during World War 1. Officers in Conning tower scan horizon with binoculars. The neutral Spanish Steamer, "Asuarca," is sighted from the conning tower, where the Imperial German Navy war ensign is displayed along with a nautical pennant bearing a white cross on red background, indicating the numeral "4." The crew is also raising a bicolor nautical flag for the letter "H." (A slate states that the U-boat is signalling for the ship to send a boat.) View of the single-stack Spanish steamer. A boat from the Asuarca, sits alongside the U-boat after bringing an officer carrying her papers. The officer is seen leaving the submarine and boarding the ships dinghy, to return to the Asuarca. A Slate indicates she carried no contraband and was therefore allowed to proceed unhindered. (World War i; World War 1; WWI; WW1)
Slate describes the Italian armed steamer, "Stromboli" carrying bulk cargoes of iron, steel, and nickel for the Italian war ministry, from Baltimore, U.S.A. to Genoa, Italy. It states that the ship was sunk and her crew released. View from deck of German U-Boat,U-49, under command of Captain Hans von Mellanthin. Several crew seen in conning tower. The single stack ship "Stromboli," stopped in the background. The U-49 approaches portside of the Stromboli, where a 7.6 cm deck gun is seen astern. An explosives technician, is dispatched by dinghy from the U-Boat, and boards the Stromboli. The U-Boat crew members obtain fresh water from the STromboli, before setting explosives to sink her. The German explosives technician is seen lighting fuses on deck of the Stromboli. The charges explode at her waterline. The U-Boat then fires its deck gun to hasten sinking of the Stromboli. View from the submarine as the Stromboli settles lower in the water and finally sinks stern-first. The location is off Capo Mele, (43.57N, 08.12E) in the Mediterranean Sea. Scene shifts to view from the U-49 deck during sunrise at Algiers.