In this episode, nine new astronauts arrive at NASA. Their mission? Test the procedures required to land men on the moon and bring them safely back to earth. Each Gemini mission launches two men into space, leading to some of NASA's greatest moments: Ed White's spacewalk, the first orbital rendezvous of Gemini 6 and 7, and Neil Armstrong's first space docking.
The Apollo programme is set to achieve the ultimate prize of the Space Race, landing men on the moon. But a fire breaks out in the pressurised capsule of Apollo 1, resulting in the deaths of three beloved astronauts.
One of the most complex instruments ever built, the Hubble Space Telescope is expected to transform our understanding of the Universe. But once it is in orbit, NASA discovers a serious problem, a defective main mirror that leaves Hubble short-sighted.