A British documentary series chronicling the fierce competition between the United States and the Soviet Union to achieve supremacy in space exploration during the Cold War era. The series dramatises key events and figures from both sides of the rivalry, blending archive footage with dramatic reconstructions. It follows the parallel stories of scientists, engineers, and astronauts as they worked under intense political pressure to reach milestones such as the first satellite, the first human in space, and ultimately the Moon landings.