THE BIG RED ONE

In a sepia-tinted prologue, a United States Army private (Lee Marvin) kills a German soldier with his trench knife, not believing the man's claims the Great War is over. His company commander then tells him the war ended four hours earlier.

In November 1942, during World War II, the US soldier is now a sergeant in the "Big Red One" leading a squad of infantrymen consisting of Private Griff, a cartoonist, Zab, an aspiring writer, Vinci and Johnson. They first landed unopposed at the beach landing in North Africa against the Vichy French army. By February, the squad and their battalion were forced to retreat after the disastrous defeat during the Battle of Kasserine Pass; the Sergeant was wounded, and taken as prisoner of war in a makeshift hospital, but he is freed after the fall of Tunis.

After reuniting with the rest of the squad, they participate in an amphibious invasion of Sicily. As they fight their way in Italy, the Sergeant and his squad earned a reputation of the moniker: the Four Horsemen; since four of the soldiers in the squad have survived through both campaigns in Africa and Italy. The squad lands in the first wave of the assault on Omaha Beach on D-Day in Normandy, and fight through France, Belgium and the Huertgen Forest of Germany.

A German Army sergeant named Schroeder is seen in many of the same battles, sharing the perspective of his American counterpart that soldiers are killers, but not murderers. The squad's participation in the battles is portrayed in a series of vignettes, including the rescue of a Belgian underground agent in a German-held asylum, an ambush of the squad by Schroeder which goes awry, and the squad's assistance to a French woman in labour which allows Schroeder to escape.

The squad takes part in the liberation of Falkenau concentration camp in Czechoslovakia. Griff, whose courage is questioned throughout the film, is driven by the horrors of the camp to kill one of the guards who refuses to surrender. The sergeant befriends a child inmate who dies later that day. That night Schroeder, realizing the war is over, attempts to surrender but is stabbed by the sergeant. The squad informs him that the war in Europe ended four hours earlier. Griff notices that Schroeder is still alive and the sergeant and his men work frantically to save his life. Zab, in voice-over, remarks that he and his fellow American troops have more in common with the German, because they've survived the war, than they do with the many replacements they fought alongside, who are dead.

The sergeant stabs his German counterpart, Schroeder, as he attempts to surrender, only to learn that the war in Europe ended four hours earlier, echoing his World War I experience.

The ending poignantly mirrors the film’s prologue, highlighting the tragic repetition of history and the heavy burden carried by soldiers who survive multiple wars. By having the sergeant repeat his earlier mistake, Fuller underscores how the chaos and moral ambiguity of combat can persist across generations. The film lands as a meditation on the thin line between survival and regret, and the ways war shapes, scars, and haunts those who fight it.