The episode begins with an introduction of Walt Disney and his robot friend Garco, who provide a brief overview of this episode, which starts with a look at mankind seeking to understand his world, first noticing patterns in the stars. He develops beliefs regarding the celestial bodies. Theories from scientists and philosophers are discussed. Ptolemy's inaccurate but formerly-accepted theories are discussed, as are those of Copernicus. Life on other planets is considered, soon focusing on Mars.