Wayne Dundees straight-shootin hard-ridin fan favorite is back in the saddle again hell bent for leather on getting justice. Arriving on horseback at a railroad watering station where he means to briefly rest and hopefully find some refreshment before moving on Lone McGantry tangles with a pair of rowdy cowboys who are up to no good. No sooner is that resolved than a train arrives after having been just robbed. Aboard is Jeth Howard an old friend of Lones from his days as an army scout. As a favor to Jeth who has particular reasons for wanting to regain a priceless heirloom in the form of a jeweled brooch that was taken during the robbery Lone agrees to aid him in the pursuit. The pair proceed to chase the train robbers-the notorious Dar Pierce gang-through Colorado and across the borderlands of Nebraska and Kansas. Along the way they encounter other dangers including betrayal a near lynching and the rescue of Minowi an Indian girl on the run before the final showdown comes in Massacre Canyon where an historic Indian battle once took place.
