The sinking of the Lusitania and the impact it had in determining the fate of World War I is widely known. But few know the stories of the passengers and crew aboard the doomed luxury liner, or the German commander who ordered the deadly attack on May 7, 1915. Follow the final voyage of the massive ship, from her celebrated exit from New York's Pier 54 to her 18-minute plummet off the coast of Ireland. Through firsthand accounts, meet the men, women, and children who rode the "Greyhound of the Seas" into a war zone, and into history.