Fact1: submarine 's captain was forced leave scouting team, Fact2: Allison got to rubber raft and after days, Fact3: Angela came with elderly priest to evacuate clergyman, Fact4: frightened natives had brought them to island, Fact5: detachment of Japanese troops arrives to set up meteorological camp forcing them to hide in cave
Output: In the South Pacific in 1944, U.S. Marine Corporal Allison Robert Mitchum and his reconnaissance party had been in the process of disembarking from a U.S. Navy submarine when they were discovered and fired upon by the Japanese. The submarines captain was forced to dive and leave the scouting team behind. Allison got to a rubber raft and after days adrift, reaches an island. He finds an abandoned settlement and a chapel with one occupant: Sister Angela Deborah Kerr, a novice nun who has not yet taken her final vows. She herself has been on the island for only four days; she came with an elderly priest to evacuate another clergyman, only to find the Japanese had arrived first. The frightened natives who had brought them to the island left the pair without warning, and the priest died soon after. For a while, they have the island to themselves, but then a detachment of Japanese troops arrives to set up a meteorological camp, forcing them to hide in a cave. When Sister Angela is unable to stomach the fish Allison has caught, he sneaks into the Japanese camp for supplies, narrowly avoiding detection. That night, they see flashes from naval guns being fired in a sea battle over the horizon. The Japanese unexpectedly leave the island, and in both celebration and frustration, Allison gets drunk on some sake left behind. He blurts out that he loves Sister Angela and that he considers her devotion to her vows to be pointless, since they are stuck on the island like Adam and Eve. She runs out into a tropical rain and falls ill as a result; Allison, now sober and contrite, finds her shivering with chills. He carries her back, but sees that the Japanese have returned, forcing them to retreat to the cave again. Allison sneaks into the Japanese camp to get some blankets for her, but has to kill a soldier who discovers him in the act, which alerts the enemy to his presence. In an effort to force him out into the open, the Japanese set fire to the vegetation. When a Japanese soldier finds the cave, Allison and Sister Angela are left with two choices: surrender or die from a hand grenade thrown inside. The ensuing explosion is not a grenade, but a bomb; the Americans have begun attacking the island in preparation for a landing. Allison comments that the landing will not be an easy one because when they returned, the Japanese brought with them four artillery pieces whose positions are wellconcealed. In what he attributes to a message from God, Allison comes up with the idea to disable the artillery during the barrage that will precede the American assault, while the Japanese are still in their bunkers. He is wounded, but manages to sabotage all the guns by removing their breechblocks, saving many American lives. After the landing, the Marine officers are puzzled by the lack of breechblocks in the guns. Allison and Sister Angela say their goodbyes. He has reconciled himself to her dedication to Christ and she reassures him that they will always be close companions. After being found, Marines carry Allison on a stretcher to the ship, with Sister Angela walking beside him.