In 1945 the USS Indianapolis secretly delivered the parts for the atomic bomb that would hit Hiroshima. Days later, mission done, a Japanese submarine put two torpedoes into her. She sank in 12 minutes. Nearly 900 men made it off the ship alive and into the open ocean. Then it got worse. No one knew they were missing. Three separate Navy stations picked up the distress signals and every one of them ignored it. One officer thought it was a Japanese trap. Another had ordered not to be disturbed. So the men floated. For almost five days. No food, no fresh water, burning by day and freezing at night. Some drank seawater and went insane. And the whole time, the sharks were circling and feeding. It is considered the worst shark attack in human history. When rescue finally came by accident, only 316 of the nearly 1,200 crew were still alive. The Navy needed someone to blame for the disaster. They chose Captain Charles McVay, one of the men who survived it. He became the only U.S. captain in the entire war to be court-martialed for losing his ship to the enemy. At his trial the Navy did something almost unheard of. They brought in the Japanese commander who sank the ship to testify against him. Instead, the enemy captain told the court that zigzagging would have made no difference and that McVay did nothing wrong. They convicted him anyway. For years afterward McVay got hate mail from the families of the dead. Some sent letters every Christmas telling him he murdered their sons. In 1968 he walked onto his front lawn and shot himself, holding a toy sailor he had kept since he was a boy. Case closed. For fifty years. Then in 1996 an 11-year-old named Hunter Scott watched Jaws with his dad and got hooked on the 30 second speech about the Indianapolis. He made it his sixth grade history project. He tracked down and interviewed nearly 150 survivors. He dug through more than 800 documents. And buried in there he found what the Navy had left out, including that they knew enemy subs were operating right on the ship's route and never warned McVay. A kid's school project turned into a national story. It reached Congress. In 2000 lawmakers passed a resolution clearing McVay's name and President Clinton signed it. The Navy officially cleared his record in 2001. The captain the Navy spent decades blaming was finally exonerated by a sixth grader. Hunter Scott grew up and became a naval flight officer.