Construction workers try to protect an engineer, who is building a new road, from thugs who want to sabotage the site so their boss, who owns the existing pass, can continue collecting outrageous tolls on his road., In this western, two cowboys offer to help an honest construction engineer build a toll-free road to usurp a tyrannical highway baron who charges exorbitant tolls to travelers. The highwayman fights back, but justice soon prevails., Western revolving around an engineer who is rescued by a pair of cowhands when he is set upon by a local thug and his armed henchman who disagree with the location of the railroad he is building. Initially thinking that they have found protection with an advocate of the new road, the trio soon discover that they have been tricked and end up trapped in a life-threatening situation in a canyon wired with dynamite.