Quiet, dreamy Lee Garrison had been content with his roaming life as a fence rider until the night a dying Indian stumbled into his dugout. The man had traveled a thousand miles trying to run down Moonshine, the wild gray stallion no one could catch. Garrison, his imagination fired by a single glimpse of the elusive mustang, took up the chase. Days lengthened into weeks, but where Moonshine went, Garrison followed. Determined to die rather than give up, he struggled on foot across deserts and badlands deep into mountain ranges. Then at last he and the stallion met in a foreordained conflict -- a dangerous battle that would have a strange result.