Robert Oppenheimber is selected by Lewis Straus to head the manhattan project to build a nuclear bomb despite his checkered history and personality shortcoming.He manages to help build a team that makes two bombs for war and one testing.Afterthe fame of helping win WW2,he refuses to help build the hydrogen bomb because of guilt of the number of deaths caused.He is perveted by being denied security clearance by Stravis who is also denied appointment to cabinet.