Revealing how the prisoners of war built three huge tunnels and prepared 200 men for escape. Meeting the captive British airmen who make it their mission to escape from a brand new Nazi prisoner-of-war camp - Stalag Luft III.

Roger Bushell and the X Committee are devastated when their Tunnel is discovered and destroyed by the ferrets. Bushell decides to reopen the other tunnel.

The escapees have fled, out of 200 who were trying to get out, 76 made their escape.