Maxwell Lord is the villain, prefiguring his eventual unmasking as a criminal mastermind out to destroy meta-humans in actual DC continuity years later.
Plot
In 1873, US Marshall Diana Prince's hometown, Paradise, is destroyed by Professor Felix Faust, an alcoholic "sorcerer" who also murders Diana's mentor, Sheriff Oberon. She vows to avenge Paradise's townspeople and asks for the help of Wally West, the Kid Flash, a gunslinger with above-average reflexes; and Katar Johnson, a Cheyanne Indian warrior also known as "Hawkman", who can fly with artificial wings. They then set to El Inferno, the headquarters of Faust's employer, railroad baron Maxwell Lord. On their way there, they are attacked by mechanical gunslingers sent by Lord and saved by Michael Carter, the Booster Gold, a mercenary outfitted with powerful guns devised by an eccentric inventor, Ted "Beetle" Kord. They agree to join Diana in their quest.
As they near El Inferno, the Justice Riders are joined by J'onn Jones, an old friend of Diana's and an alien searching for Lord's "secret weapon". They are followed by Guy Gardner, a Pinkerton Agency private investigator who wants to arrest Kid Flash for the death of a lawman called Barry Allen. Upon arriving at El Inferno, the Justice Riders face off against Lord, Faust and their mechanical soldiers. Diana, Hawkman, Jones and Kid Flash destroy the robots while Booster Gold and Blue Beetle fight Gardner. Suddenly, they are attacked by Lord, piloting a powerful war machine called the Lordevastator.
El Inferno is nearly destroyed in the battle, but Diana manages to destroy the Lordevastator. Lord claims that he is Earth's rightful heir and reveals that he has been destroying several small towns such as Paradise to open way for a railroad that will allow Lord to transport his war machines to strategic points of the United States and slowly take over the world. Diana kills him while Kid Flash and Gardner, who were fighting each other, briefly team-up to shoot Faust, who tried to kill them with a shotgun. Gardner agrees to allow Kid Flash to escape this one time, but vows that he'll capture him eventually before riding off. Kid Flash decides to hide in Mexico, while Hawkman returns to the Indian reserve where he lives and Jones uncovers the source of Lord's advanced technology: a Dominion alien trapped in a cage. He decides to return the being to its homeworld, while Diana returns to Paradise intending to rebuild it and Booster Gold searches for new jobs in Alabama. Blue Beetle returns to his old town and sells the story to dime writer Clark Kent in order to use the money to finance his inventions.
The Justice Rides ride together into the sunset one last time. Meanwhile, back at the ruins of Paradise, Faust rises from the death once more, revealing himself to truly be a supernatural being.
