The Great Escape This Saturday marks the 40th anniversary of one of the greatest mass escapes of all time. Seventy-six allied POWs broke out of Stalag Luft III, using the 350-foot tunnel they'd constructed under the very noses of their guards. Sadly, all but three were caught and 50 men were murdered. But Ley Kenyon, who helped to mastermind the plot, survived and tells the true story of 'The Great Escape'..