Will Kearny reckons he has a job for his working life, ramrodding iron-willed Peter Thwaites's Rocking T outfit. But after winning a bruising fight with the brutish troublemaker "Bull" Jusserand, Kearny is dealt an inexplicable blow. Old Pete abruptly quits the struggle for survival and sells out to his sworn enemy - Jusserand's boss, the range-hog Franz Sturman.

The mystery deepens when Seabury Reece, Sturman's tricky lawyer traps Kearny into riding herd over a "cargo of brides" from back east. What is the secret of lovely Christine Smith, the sad-eyed, odd-girl-out among what proves to be a hell-raising bevy of fallen women? Before Kearny finds the answers, he has to make room in his full hands for a roaring six-shooter!