In advance of the D-Day Landings, paratroopers from the US 82nd Airborne Division are dropped behind enemy lines to capture strategic positions. One such location is near the town of Ste Mere Eglise where American airborne troops fight Nazi forces for control of a bridgehead for three days, to prevent German reinforcements from reaching the beaches.

In November 1944, Eisenhower's Broad Front strategy is tested by heavy rains and thick mud which sever supply lines and hinder reinforcements, as British troops arrive to fight on German soil alongside US troops to take the fortified town of Geilenkirchen, a stronghold in Hitler's infamous Siegfried Line.