Space battleships from two alien races, the Lonnons and the Rarocks, meet in space and during the ensuing battle between these two mortal enemies, a few of the damaged Lonnon fleet manage to make it to Earth for repairs. The Rarock ships also go to Earth - to wipe out the remaining Lonnons and any Earthlings that may stand in their way. The Rarock are a brutish alien race. The Rarock resemble muscular primates. They are larger than both the Lonnons and humans. The Lonnon are a race of diminutive and intellectual beings, their bloodline had some human in it, giving them a similar look to ours. They are smaller in size as compared to the Rarock.