A mild-mannered rancher, Steve Adams, had been a Comanche Indian who was taken in by ranchers very early in life. He learned as a teenager that there was a Comanche legend telling of a great warrior who would come to right wrongs and do good, riding like the wind and relentless in his aim. Steve became that warrior, known as Straight Arrow! He had a secret cave where he kept his beautiful and swift palomino Fury, and unknown to any save his trusty whiteman sidekick Packy McCloud, he would ride out of the empty horizon to become Straight Arrow.