Three robbers hold Mark hostage, forcing Lucas to help them rob the North Fork bank. Guest stars: Marc Lawrence, Harold J. Stone, Jack Kruschen, Harlan Warde
A matriarch seeks revenge for her sons' deaths. Guest stars: Lane Bradford, James Hurst, Robert F. Hoy
A prison wagon carrying seven criminals stops over in North Fork for supplies. Guest stars: Bing Russell, Helen Beverley, Hope Summers, Don Megowan
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 trails an escaped prisoner (Claude Akins) to a mining town in the mountains. Guest stars: William Schallert, Claude Akins, Peter Whitney
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.
Lucas helps a young minister who had problems with his father. Guest stars: John Hoyt, Don Dubbins, Richard Alexander
A new store owner unknowingly hires con men as collection agents. Guest stars: Joan Taylor, Warren Oates, Michael Fox, Charles Tannen, Richard Devon
Before she dies, the widow of a bandit Lucas shot arranges for his death. Guest stars: Joan Taylor, Steve Darrell, Chris Alcaide, Harlan Warde, and Ed Nelson
Mark is trapped in an old mine. Guest stars: Jimmy Fields, Pamela Cole, and Arnold Moss
A con man makes his living by provoking and then betting on gunfights. Guest stars: Dabbs Greer, Denny Miller
A hard-drinking painter is accused of murder. Guest stars: Midge Ware, Dayton Lummis, Ed Nelson, Joseph V. Perry, Richard Whorf
A desperate, mute man steals from the stagecoach. Guest star: Richard Devon
A sprightly elderly lady arrives in North Fork and announces that she plans to capture a bandit. Guest stars: Joan Taylor, Agnes Moorehead, Richard Anderson
Lucas helps alcoholic former doctor Jack Cooke (John Larch) regain his self-respect. Guest stars: John Larch, James Gavin, Ron Hayes, Ralph Moody
Lucas unmasks a book salesman as a killer. Guest stars: Richard Anderson, Jean Allison, Patricia Breslin
Lucas and Micah are beset with troubles while bringing a killer to trial. Guest star: Lonny Chapman
A dying friend asks Lucas to fetch his wife. Guest stars: Morris Ankrum, Diana Millay, Ralph Moody, Charles Tannen
Lucas begins to believe in ghosts when he sees someone he thinks he killed in the war. Guest stars: Joan Taylor, K.T. Stevens, Ralph Moody, Ben Cooper, John Anderson
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)
Lucas is sent to Wyoming to investigate the sale of guns to Indians. Guest stars: Joan Taylor, Kent Taylor, Dabbs Greer, Russell Thorson, Chris Alcaide
Micah is terrorized by an old enemy and resigns from his job. Guest stars: Rex Ingram, Berry Kroeger, Bill Quinn
Lucas, Mark and Micah learn the secret of a town's 20-year-old mystery of a lost gold mine. Guest star: Willam Fawcett
Lucas, temporarily blind, faces a gunfight. Guest stars: Joan Taylor, John Milford, Ralph Moody, Joe Higgins
A former POW imprisons Lucas for his role in the Civil War. Guest stars: Joan Taylor, Adam Williams, John Dehner
A traveling salesman is accused of forcing his attentions on a local woman. Guest stars: Linda Lawson, King Calder, Paul Mantee and Bob Sweeney
Lucas faces lynching for unwittingly buying stolen horses. Guest stars: Hal Baylor, Norman Leavitt, William Schallert, Bert Freed
A slow-witted handyman gets into trouble when he accidentally kills a skilled gunfighter. Guest stars: Joan Taylor, Buddy Hackett, Denver Pyle, Lee Van Cleef, John Milford
Lucas and Mark stumble across a robbery in progress. Guest star: Adam Williams
After Lucas receives a curse while attending the hanging of a murdering Indian, he goes on a hunt to find out who or what is behind the so-called curse. Guest stars: Ralph Moody, Jackie Searl, Michael Pate