Just after midnight on 30th 1945, the USS Indianapolis was sailing alone in the Philippine Sea when she was struck by two Japanese torpedoes, almost three hundred miles from land. She sank in 12 minutes. For the next five nights, nearly nine hundred men struggled with battle injuries, shark attacks, dehydration, insanity, and eventually each other. Sara Vladic is one of the world's leading experts on the USS Indianapolis, having met and interviewed 108 of the ship’s survivors. She joined me on the pod to recount this nightmarish event, revealing the grievous mistakes, extraordinary courage and unimaginable horror which surrounded it.