On a July morning 60 years ago, scientists and dignitaries gathered in a desolate area of the New Mexico desert aptly known as Jornada del Muerto Journey of Death to await the detonation of the first atomic bomb. Dubbed "The Manhattan Project," this top-secret undertaking was tackled with unprecedented speed and expense, the equivalent of nearly $30 billion in today's dollars. Although the bomb was built in the interest of peace, ethical conflicts and gut-wrenching decisions were inevitable. In THE MANHATTAN PROJECT, Los Alamos scientists and engineers relate their trials, triumphs, and dark doubts about building the ultimate weapon of war. Join HISTORY for a fascinating journey into the events of July 16, 1945 -- a day that changed the world forever.