Robbers hold Mark hostage at the farm in order to convince Lucas to ride into town and help them rob a bank. When Mark is injured, Lucas swears vengeance and rides off after them.
The family matriarch of the local mountain people wants revenge after one of her sons are killed... and Lucas is the one who killed him during a robbery.
Lucas is taken hostage after seven convicted murderers conduct a jail break and flee to North Fork.
A con man and his son are after Lucas' mineral rights.
Lucas must go up against a town in order to retrieve a prisoner.
Lucas goes after a notorious bandit.
An Army captain rides to North Fork to look for the man who killed one of his sons: Lucas McCain.
North Fork's new store owner decides to collect all of the money the townspeople owe and ends up hiring a shady newcomer to collect.
A widow puts up $100,000 reward for Lucas' death.
Mark and a school friend become trapped in a mine.
A conman makes money off a slow-witted farmboy with lightning reflexes: he provokes fights and bets on his boy. However, he makes a mistake when he picks Lucas for the next fight.
An alcoholic painter is accused of murder.
A mute Indian steals from a stagecoach to get revenge on the townspeople who hate him.
An elderly lady, Miss Bertie, sets out to catch a bandit.
Lucas helps an alcoholic doctor regain his dignity.
Lucas believes a book salesman is a murderer.
Lucas and Micah have to relocate a prisoner, but have a hard time doing so.
A dying man's last request is for Lucas to bring him his wife.
Lucas must face the son of a man he killed during the war.
When the herd is wiped out by hoof-and-mouth disease, Lucas needs money and goes undercover in Wyoming as a federal agent to find a murderer.
While Lucas continues searching for the men selling repeating rifles to Indian renegades, Mark tries to deal with life without his father.
Micah snaps at Lucas and gives him his badge, claiming that Lucas has been undermining him for years. He soon goes back to his hard-drinking ways. However, Lucas soon discovers that Micah is cracking because the gunslinger that drove him to cowardice and drink the first time is returning to North Fork.
Micah, Lucas, and Mark investigate a 20-year-old mystery.
After being rendered temporarily blind, Lucas must take part in a gunfight.
Two former Confederate POWs take Lucas prisoner and plot revenge for his role in their captivity during the Civil War.
Lucas' friend, traveling salesman Speed Sullivan, returns to North Fork and ends up accused of assaulting a woman.
Lucas unknowingly buys stolen horses and faces hanging for doing so.
A janitor accidentally kills a gunfighter, and the man's partner comes looking for revenge.
After being wounded, Lucas heads out to bring robbers to justice.
A Mescalaro Indian puts a curse on the jury foreman that he holds responsible for his son's death: Lucas McCain. A ghostly horseman soon rides the ranges, and two men die after crossing paths with him.
A stage coach is stranded at the McCain ranch during a snowstorm.
Lucas' name is submitted to a matchmaker.
A doctor is threatened to not help save a man.
A bigot tries to intimidate a Chinese man and his son who arrive in North Fork.