Tokyo has been decimated by a terrorist attack, the only clue to the culprit's identity is a bizarre internet video. Two mysterious children form Sphinx, a clandestine entity determined to pull the trigger on this world.
Elizabeth Thatcher, a young schoolteacher from a wealthy Eastern family, migrates from the big city to teach school in a small coal mining town in the west.
With the country on the brink of Civil War, the struggle for freedom is more dangerous than ever. Underground follows the story of American heroes and their moving journey to freedom.
In 1943 Los Alamos, New Mexico, a team of government scientists is working on the top-secret Manhattan Project in a race to produce an atomic bomb before the Nazis. Meanwhile, their families adjust to life on the military base.