The proposed mission to explore the moon, in addition to further missions, will require the acceleration and deceleration of very heavy loads. This documentary explores the use of nuclear propulsion to complement the chemical fuels used in today's rockets. Includes: a Saturn 5 rocket on its launchpad, launch and flight [including stage separation and air-ground shots]; the concept of substituting a nuclear 3rd stage to increase payload velocity; 1950s research in New Mexico to determine the feasibility of nuclear energy in rocket propulsion; development of engine technology via the NERVA [Nuclear Engine For Rocket Vehicle Applications] project, engine testing; a description of how this technology may be used for a theoretical mission to Mars.