When a rancher dies after the bank forecloses the mortgage on his property, his son blames the banker for his father's death.
Lucas is the town's representative to the railroad commission until an infamous train robber dies and leaves his ill-gotten wealth to Lucas. Lucas must clear his name.
When renegade Apaches wound Lucas and kidnap Mark, Marshall Torrance joins with U.S. Marshall Sam Buckhart to form a rescue posse.
When Mark finds of the body of a murder victim, Lucas, his friend Artemus and Marshall Torrance begin a search for the killer.
A drought has forced local cowhands to seek work on a railroad construction project, but executives are afraid workers will desert them if they believe an old man's claim of making rain.
When his employer begins to suspect him of embezzlement, bookkeeper Asa Manning decides to hire a professional gunman to take care of the problem.
An unfounded rumor causes North Fork's outspoken feminist schoolteacher to be attacked by a mob of angry townspeople.
The McCains try to be tolerant of their embittered neighbor Abel MacDonald, but they decide he's gone too far when he won't allow his injured boy to get medical treatment.
Young Mark manages to capture a hawk but falls into danger with a rattlesnake. A stranger comes to his rescue and Mark invites the man home, unaware that he is on the run from the law.
Lucas comes to the rescue when escaped convicts hold up the general store in North Fork and take Marshall Torrance hostage.
Young Mark McCain is eager to help lawman Jay Jefferson, who has arrived intent on killing an outlaw.
Dan Maury, released from Yuma prison, arrives in North Fork intent on getting even with Marshal Torrance, who helped send him to jail.
Lucas welcomes his old friend Tom Birch, who once saved his life, unaware that the man is now a bank robber on the run with his gang.
Lucas puts his life in jeopardy when he agrees to testify in a murder case where the first witness was killed before he could testify, and the killer is still at large.
Sid Fallon tries to blackmail former gambler Julia Andueza into allowing him to use her boarding house as a gambling hall and saloon.
U.S. Marshal Sam Buckhart arrives in North Fork in search of renegade Indians suspected of the brutal killing of a Texas Ranger and his family.
An arch-criminal has been run out of New Orleans and is passing through North Fork. Spotting the McCain ranch, he tells McCain he wants to buy it.
When Mark tries to play Cupid between Lucas and a stranger who arrives in North Fork, the girl's older brothers accuse him of trifling with her affections and challenge him to fight.
A new bank opens and Banker Hamilton hires a slow-witted gunman to guard the safe. When some of the gunman's old outlaw friends arrive in town they propose he join them in robbing the bank.
A vengeful judge who believes Lucas was responsible for his son's death, kidnaps Mark McCain to revenge himself on Lucas.