In this episode of Mind-Blowing History, Historia tells the incredible true story of how Allied prisoners of war in Nazi Germany planned and executed one of the most daring escape attempts in military history. With only basic tools, and under constant surveillance, these POWs dug a tunnel over 30 feet deep and hundreds of feet long. Learn how they outsmarted their captors, the tragedies that followed, and the enduring legacy of their bravery.