As the twentieth century continues, America faces perhaps its most daunting challenges yet. The 1930s brings the greatest economic crisis in its history; FDR offers the troubled nation a New Deal, but there are clouds on the horizon; Pearl Harbor is a lightning bolt to the American soul, and in command of the allied invasion, General Dwight D Eisenhower; the U.S. elects its youngest commander-in-chief, 46-year-old John F. Kennedy; and on a bridge over the Alabama river, Martin Luther King's fight for equal rights will face its fiercest test. Then, on a bright September morning in 2001, America faces a new crisis: sudden, overwhelming and deadly.