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 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.

Lucas and Mark attempt to reform a con-man.

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)

Mark heads for Wyoming to search for Lucas, who's on the trail of a gang illegally selling weapons to the Indians. (Part 2 of 2)

Lucas looks for answers when recovering alcoholic Micah Torrence returns to the bottle—and turns in his badge.

In a ghost town, Lucas, Mark and Micah tangle with the Newman family and learn the secret of the town's 20-year-old mystery of a lost gold mine.

Blinded in an explosion, Lucas fights despair as he prepares for a meeting with a gun-toting enemy.

Two ex-Confederate officers seek revenge on Lucas, who served as prison guard during their internment.

A salesman can't talk his way out of an assault charge.

Lucas, accused of horse theft, struggles to clear himself before a lynch mob catches up.

A janitor-turned-gunfighter whose reputation hangs on one lucky shot—and a lot of gall.

Lucas tries to get help when he is shot after witnessing a murder.

Lucas is marked for death: he was foreman of a jury that convicted an Apache.

Trouble brews at Lucas's when a whisky salesman and a gunfighter fall for the same woman.

Two pranksters write away for a mail-order bride, using Lucas's name.

Lucas recognizes Dr. Simon Battle as an ex-gunslinger with whom he once traded shots.

A Chinese man and his son fight prejudice as they try to open a laundry in North Fork.