John Cannon and Billy Blue are captured by Apaches far from home and made to face death from lack of water.

John and Billy force a wounded Indian, Klosen, to lead them toward water but the Apache escapes. Buck and Manolito catch a glimpse of a war party wearing John's and Billy's hats but harsh desert winds make it impossible to track the missing pair. When John and Billy do find water, renegade Chief Soldado ties them to a rock to die of thirst.