In the heat of the Cold War, the USSR and USA compete for supremacy in outer space. Both superpowers race to be the first nation to have a man complete a spacewalk. No price is too high and no risk is too great.

To set off one of man kind's most ambitious missions, the USSR pair the unlikely duo of a seasoned war veteran, Pavel Belyayev, and a fearless test-pilot, Alexei Leonov. Without proper testing, and inside a tiny spaceship, the two astronauts launch into the unknown to take on what no man has done before.