A group of outlaws devise a plan to get rid of Lucas so that they can take over the town of North Fork.
Guest Stars:
Don Grady, John Anderson, Dennis Cross, Whit Bissell, Steven Marlo
After Lucas kills a mountain man in a barrom brawl, his father arrives in North Fork determined to take revenge on Lucas and Marshal Torrance, once he breaks his other two boys out of jail.
Guest Stars:
Rhys Williams, Buddy Hackett, Warren Oates, Christopher Dark, Denver Pyle
Newly arrived gunslinger Al Walker throws a mammoth party at the saloon, keeping acting Marshal Ben Waller busy until Lucas is forced to intervene.
Guest Stars:
John Dehner, John Milford, Glenn Strange, James Parnell, George Brenlin
Newspaperman Byron Claremont specializes in profiles of famous gunmen. One of his stories was responsible for an old-time marshal's death; and his next subject is Lucas.
Guest Stars:
Joanna Moore, Chris Alcaide, Brian G. Hutton, Alexander Scourby
Gavin and Ezra Martin think that Lucas killed their son Clemmie while taking part in a train robbery, and Lucas refuses to tell them what really happened.
Guest Stars:
Harry Dean Stanton, Robert H. Harris, Gregory Walcott, Jack Elam
After the daughter of Lucas's friend the hotel clerk arrives in North Fork, two strangers threaten her life.
Guest Stars:
Gloria DeHaven, Ray Teal, Peter Whitney, John Harmon
Town character Brett Conway blackmails Lucas with the knowledge that a young couple Lucas rescued are suffering from yellow fever.
Guest Stars:
Dabbs Greer, Charles Watts
When their wagon breaks down, Mark and an injured Lucas are stranded in the desert.
Guest Stars:
Hank Stohl
Mark is kidnapped as he and his father try to protect Banker Hamilton's gold.
Guest Stars:
Glenn Strange, Richard Devon, Jack Lambert, Virginia Christine, John Harmon
Lucas makes a life-or-death decision when Micah is held hostage and the kidnappers demand the release of a notorious outlaw.
Guest Stars:
Rhys Williams, Milton Parsons, Harlan Warde, Vic Morrow, Michael Fox
Lucas tries to do a good deed for the old town drunk but it backfires when the drunk's son believes he inherited Lucas' ranch.
Guest Stars:
James Franciscus, James Barton, Jack Grinnage, Denver Pyle
A dance hall singer asks Lucas to care for her daughter in an effort to hide the baby from her self-righteous, bigoted father.
Guest Stars:
Henry Rowland, Phyllis Avery, Bill Quinn, John Dehner, Lillian Bronson
Lucas becomes involved in a battle between an aspiring writer and a cocky, bragging trail boss.
Guest Stars:
John Milford, Carleton Carpenter
Mark runs away from home after his father questions his story about overhearing a plot to rob the bank.
Guest Stars:
Mike Kellin, Harlan Warde, Lin McCarthy, Ted Otis
A famous buffalo hunter tries to goad Lucas into a shooting match.
Guest Stars:
John Anderson
When a stranger arrives to marry the town spinster, two brothers who want her land try to discourage him with threats and a beating.
Guest Stars:
John Anderson, Sandy Kenyon, Peter Whitney, Montie Montana
Mark finds himself in grave danger when two unscrupulous detectives searching for a man's long-lost son claim that it is Mark.
Guest Stars:
Herbert Rudley, Rhys Williams, Royal Dano, Chris Alcaide
Lucas is drawn to a young widow passing through town on her way to claim an inheritance, but others who covet it are trying to kill her.
Guest Stars:
Michael Pate, June Vincent, Ralph Moody, John Harmon
After a young stablehand kills a notorious gunslinger, he is baffled by the hostility of the townspeople about giving him the reward.
Guest Stars:
Robert Culp, Dennis Cross, Frank Ferguson
When a horse dealer transporting a prize stallion stops in North Fork, two saddle tramps try to use trickery to obtain it.
Guest Stars:
John Milford, Clegg Hoyt, Chubby Johnson
An elderly couple moves to North Fork under an assumed name to hide the fact that they are the parents of a vicious killer. The plan backfires when the son shows up at their home.
Guest Stars:
Skip Homeier, Ralph Moody, Ellen Corby, Chubby Johnson
After foiling a girl's attempt to rob the general store, Lucas finds that she and her brother are plotting the murder of their abusive stepfather.
Guest Stars:
Don Grady, K.T. Stevens, Gigi Perreau, Peter Whitney
A condemned killer being transported by train murders a marshal and takes Mark hostage.
Guest Stars:
Arthur Hunnicutt, James Anderson, Arthur Space, Richard Devon, Stuart Randall
Mark discovers that the new preacher and his wife are impostors planning a robbery.
Guest Stars:
John Milford, Chris Alcaide, Robert Osterloh
Lucas and Marshal Torrance get into trouble with the Army when they try to help a wounded young soldier who deserted.
Guest Stars:
Ron Hagerthy, Harry Carey, Jr., Bill Quinn, Robert Cornthwaite, Baynes Barron
After Mark contracts typhoid fever and has a vision of his dead mother, he no longer seems interested in getting well.
Guest Stars:
Dennis Cross, Karl Swenson, John Abbott, Marian Seldes, Russell Custer
An old friend of Lucas's returns to town in the company of a shady gambler and is accused of cheating at cards.
Guest Stars:
George Macready, Richard Anderson, James Flavin, Dayton Lummis
Several men are vying for a rancher's daughter's affections. When she is found dead, one of them becomes the prime suspect in her murder.
Guest Stars:
Richard Alexander, William Benedict, George N. Neise, Douglas Kennedy, Paul Carr
Shotgun man John Beaumont, who Lucas sent to prison, returns with vengeance on his mind.
Guest Stars:
Paul Mazursky, John Anderson, Jack Elam, John Harmon
After shooting a man in self-defense, Andy Moon turns to Lucas for protection from his vengeful brothers.
Guest Stars:
Rhys Williams, George D. Wallace, Dick Wilson
To keep his invalid mother happy, an outlaw forces Lucas and Mark to go along with a masquerade that he is the owner of Lucas's ranch.
Guest Stars:
Rhys Williams, Warren Oates, Josephine Hutchinson, Lee Van Cleef, Kevin Hagen
A sharecropper enters his colt in a horse race, hoping to win enough money to buy his farm from the owner, who has bet on Mark McCain's entry.
Guest Stars:
James Westerfield, K.T. Stevens, Whit Bissell
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.
Guest Stars:
Molly Dodd, Dabbs Greer, Karl Swenson, Bill Quinn, Charles Tannen
Lucas helps his former Army captain, now an undercover federal agent, infiltrate a gang of bank robbers.
Guest Stars:
John Milford, Frank De Kova, Claude Akins, Jan Murray, Chris Alcaide
Lucas finds himself involved in murder when he gallantly steps to the aid of a beautiful woman.
Guest Stars:
Johnny Carpenter, Julie Adams, Murvyn Vye, Michael Fox, John Carpenter