Synopsis

As the Cold War began to take shape, the United States secretly launched a program in New Mexico, aiming to create a weapon surpassing even the atomic bombs used against Japan. Simultaneously, vast distances away on the Siberian steppes, the Soviet Union embarked on a comparable undertaking. The pursuit of the hydrogen bomb—a weapon poised to reshape the world—was defined by a network of spies and scientists, a landscape of intrigue and deception.