The desert terrain was once haunted by the Phantom - a blanched man on a pale-grey horse, who struck in the night and killed without mercy. Wild Bill Hickok shot the legend down once - and twenty years later, when the Phantom's son took up the torch, he did so again ... With both culprits dead, Hickok and his compadres are satisfied they have laid the ghost to rest. But when a mortally wounded man gasps that the spirit has returned, they must take up arms once more - against the Phantom's second son ...