In August 1942 the American forces are fighting the Japanese in the South Pacific during
World War II. Fresh out of PT boat training school in Melville, Rhode Island, U.S. Navy
Lieutenant, junior grade John F. Kennedy used his wealthy and powerful family's influence to get himself assigned to the fighting in the
Solomon Islands, a hotbed in the Pacific Theater. Once there he lobbies for command and is given the well worn
PT 109. Initially,
Tulagi's irascible boat maintenance officer
Commander C. R. Ritchie is unimpressed with the young, untested Kennedy, but the lieutenant is undaunted. With a hodge-podge crew anchored by
Ensign Leonard J. Thom as executive officer and initially skeptical sailors "Bucky" Harris and Edmund Drewitch he gets the 109 seaworthy again. Without enough fuel for the return trip, the
PT 109 is dispatched on an emergency mission to evacuate
paramarines pinned down on a distant beach after disrupting the Japanese in the
Raid on Choiseul. Under heavy fire Kennedy rescues the survivors, but barely gets out of range before his engines run out of fuel. Drawn shoreward by an incoming tide, the boat and its passengers are saved from disaster when a tow arrives just in time. The
109 is then relocated to a base on
Rendova. While on patrol one dark, moonless night in August 1943, the radar-less boat is throttled down and searching for a Japanese convoy returning from a supply mission via "
The Slot". Out of nowhere an Imperial Navy destroyer appears, and before Kennedy can react the
PT 109 is rammed and sliced in half, killing two of her 13 crewmen. Towing a badly burned crew member by a life jacket strap clenched in his teeth, Kennedy leads the survivors to
Plum Pudding Island. The next day the abandoned wreckage is spotted by a reconnaissance plane, and the
109's crew is presumed lost with all hands. After dark, Kennedy swims out into the channel with a signal lantern, staying out all night in the hope of flagging down a passing U.S. vessel. The next night, he sends out a friend who tagged along on the mission, Ensign George Ross. After several fruitless days morale drops and Kennedy is forced to quell an uprising determined to surrender. Hoping for better prospects of food and water on a nearby island, he leads the crew on another three-mile swim. There two rifle-armed natives show up in a canoe and hold the men at gunpoint, confused as to their identity and affiliation. As the pair do not understand English but appear receptive, Kennedy carves a message on a coconut requesting rescue and gives it to them. They take it to
Australian
coastwatcher Lieutenant Reginald Evans. Evans notifies the U.S. Navy, and the men are rescued by PT boat without any further loss of life. As a result of their ordeal Kennedy and his men are eligible for leave back in the U.S., but he and several loyal crewmembers elect to stay and continue the fight on a new combat-weathered boat. ==Cast==