S1, E6: In May 1940, 400,000 Allied troops are surrounded by Hitler's army on the beaches of Dunkirk. Deep in the tunnels under Dover Castle, the Royal Navy plans a rescue mission. Success or failure could decide the outcome of the war.


S1, E6: In May 1940, 400,000 Allied troops are surrounded by Hitler's army on the beaches of Dunkirk. Deep in the tunnels under Dover Castle, the Royal Navy plans a rescue mission. Success or failure could decide the outcome of the war.