Six weeks before D-Day, British, American, and Canadian soldiers took part in a vigorous and dangerous dress rehearsal for their Normandy invasion. Shockingly, the exercise would ultimately claim more American lives than the attack on Utah Beach. So what happened, exactly? How many Americans actually died? And who is to blame? Join us as we investigate the Exercise Tiger disaster, uncover the veil of secrecy surrounding it, examine the conspiracy theories it has inspired, and for the first time, tell the full story of the catastrophe.