Seasons & episodes

When Lucas hires an ex-con as a ranch hand, the man is the first one under suspicion when a robbery and murder occur in the area.

Lucas helps his former Army captain, now an undercover federal agent, infiltrate a gang of bank robbers.

Lucas finds himself involved in murder when he gallantly steps to the aid of a beautiful woman.

An ex-convict is blamed for a brutal crime despite his claims of rehabilitation.

Lucas is out for vengeance when Mark is used as a pawn in a bank robbery scheme.

Lucas shoots a horse thief who turns out to be a member of the Boyle clan, and now Ma Boyle is after him.

Seven condemned murderers escape and take over the town of North Fork.

When Mark finds gold on their property, a fast-talking salesman who tried to sell Lucas a new lightning rod offers instead to buy the ranch's mineral rights.

Lucas tracks an escaped prisoner to a town that turns out to be run by the gunman's brother, notorious for shooting people in the back.

When an outlaw leader lures Marshal Torrance out of town, Lucas is the only one who can stop him from lynching a local man who killed one of the members of his gang.

A former army captain comes to North Fork to kill the man who shot down his son in a gunfight - Lucas McCain.

A new store owner upsets the town by demanding that all credit accounts be paid off.

The widow of a bandit killed by Lucas plots a grotesque revenge.

Mark and his friend become trapped in an old mine.

A con man and his fast-gun friend come to North Fork. Lucas enters a target shooting contest.

Lucas encourages a drunken artist charged with murder to use his talents to identify the true killer.

Lucas and Mark try to persuade a persecuted young mute to return stolen money.

A lively old lady arrives in town hot on the trail of a notorious bandit—and the reward money for capturing him.

A doctor seeks revenge on the man he blames for ruining his practice.

Lucas unmasks a killer posing as a door-to-door seed salesman.

Lucas and Marshal Torrance run in trouble transporting a captured killer back to face trial.

A deathbed request from an old friend sends Lucas to a neighboring town in search of the man's long-lost sweetheart.

Lucas thinks he has seen a ghost when a young man, eerily similar to a man he killed in the Civil War, challenges him to a gunfight.

Lucas agrees to take a job as a federal undercover agent and goes to Wyoming to investigate rumors of sales of arms to renegade indians. His life is endagered by the town drunk who stumbles onto his true identity and purpose. (Part 1 of 2)