A British ship is sunk after an engagement with a German vessel, and the survivors are picked up by the German ship, which has been damaged. When it pulls into the bay of a deserted island to make repairs, one of the British survivors, Seaman Brown, steals a rifle and escapes from the ship, his plan being to try picking off the crew from various spots on the island and delay the ship's repairs long enough for a British vessel to arrive and give battle.