For a few crucial moments on September 26, 1983, Stanislav Petrov held the fate of the world in his hands. When an alarm suddenly went off at Soviet nuclear early warning center Serpukhov-15, Stanislav was responsible for reacting to a report that five American nuclear missiles were heading toward the Soviet Union. Rather than retaliate, Stanislav followed his gut feeling and went against protocol, convincing the armed forces that it was a false alarm. His decision saved the world from a potential devastating nuclear holocaust.