At the height of the Cold War in 1959, the Soviet Union dominates the space race. To combat a national sentiment of fear and decline, the U.S. government conceives of NASA’s Project Mercury, igniting a space race with the Soviets and making instant celebrities of a handful of the military’s most accomplished test pilots. These individuals, who come to be known as the Mercury 7, are forged into heroes long before they have achieved a single heroic act.