The man who found the Titanic, returns to uncover new secrets. Bob Ballard is back on National Geographic Channel. In 1915 during World War 1 there is an event, that forever will be carved into the historybooks as one of the allies biggest defeats – the battle of Gallipoli. This was one of the battles that should have ended the war. Instead 150.000 soldiers lost their lives. Bob Ballard dives into the story in an attempt to find answers to what went wrong!