This Emmy-winning, historically accurate drama tells the complex and moving story of the Manhattan Project. Racing against the Nazi war machine and enduring intense military and political pressure, Allied scientists wrestle with the challenge of creating the ultimate weapon. Leading the superb cast are Michael Tucker (L.A. Law) as Hungarian physicist Leo Szilard, David Strathairn (Good Night, and Good Luck) as mission chief J. Robert Oppenheimer, Brian Dennehy (Death of a Salesman) as General Leslie Groves, and David Ogden Stiers (MASH) as FDR. Also featuring Hal Holbrook (Mark Twain Tonight!), Hume Cronyn (12 Angry Men), and Tony Shalhoub (Monk).

Before the bomb can be perfected, Hitler's death and Germany's surrender remove one enemy from the equation. But Japan remains. Day One builds quietly to a shattering climax, as the scientists who developed the bomb out of patriotic fervor witness its grisly consequences.