Eisenhower inspects the landing beaches and we see the "Mulberry" harbors put in place along the Normandy beaches. Airfields are built and supplies offloaded. V-1 rockets attack London. We see Germans build the V-2 rockets. Storms wreck a Mulberry harbor and damage the other. Cherbourg is taken, but is wrecked by the Germans. The British and Canadians work to take Caen. Operation Cobra is launched to break out of Normandy.