The story picks up where D-Day left off, following the Allied push across France after the Normandy landings toward what the film frames as the war's second true turning point. Archival footage and narration trace the breakout from the Normandy beachheads, the fighting through the French countryside, and the role of the French Resistance in harassing German supply lines and feeding intelligence to Allied commanders. The episode builds toward the liberation of Paris in August 1944, including Charles de Gaulle's return to the capital and the collapse of German control across the country. Rather than treating the liberation as a foregone conclusion once the beaches were secured, the film treats it as a hard-fought second campaign with its own near-failures and turning points. Part of Timeline's WWII strand, the episode uses period footage and maps to keep the geography and chronology clear for viewers who already know D-Day but not what came immediately after it.