Battle of the Planets is an American adaptation of the Japanese anime series Science Ninja Team Gatchaman (1972). Of the 105 original Gatchaman episodes, 85 were used in the Battle of the Planets adaptation, produced by Sandy Frank Entertainment. The adaptation was generally faithful to the plot and character development of the original Gatchaman series, but significant additions and reductions were made in order to increase appeal to the North American television market of the late 1970s, as well as avoid controversy from parents; these included the removal of elements of graphic violence and profanity.

Plot

Battle of the Planets cast five young people as G-Force, consisting of Mark, Jason, Princess, Keyop, and Tiny. G-Force protects Earth from the planet Spectra and other attacks from beyond space. The most prominent field commander of the Spectra forces was a villainous, masked individual known as Zoltar. Zoltar would receive his orders directly from a being he would refer to as the "Luminous One". The Luminous One would appear as a ghost-like, disembodied, floating head. Who, or what, this being actually was, is never explained in any detail throughout the series.