Lucy Worsley examines how postwar America built the story of the 1950s as a golden age of abundance and consensus, and how much of that story was manufactured. This is the third film in her series on national myths, and it argues that the era of American supremacy after 1945 rested as much on government deception as on prosperity. The film moves through the machinery of Cold War persuasion: propaganda campaigns selling the suburban dream, official reassurances about nuclear safety that contradicted what scientists knew, and the gap between America's image of racial harmony and the reality of segregation and civil rights conflict playing out in the same years. Archival footage of civil defense films, advertising, and news broadcasts sits alongside Worsley's on-camera analysis as she traces how fear of communism and nuclear annihilation were managed for public consumption. The picture that emerges is of a superpower selling confidence to its own citizens while quietly managing panic behind the scenes.