Lucas helps an old friend (Claude Akins), a federal agent, infiltrate a gang of robbers.

Guest stars: Chris Alcaide, John Milford, Frank de Kova, Bill Quinn, Ian Murray, Richard Alexander, and Archie Butler

A convict (Dabbs Greer) is released from prison and returns home to North Fork.

Guest stars:Karl Swenson, Bill Quinn, Molly Dodd, Charles Briggs, Charles Tannen, and Archie Butler

A neighbor (Whit Bissell) has bet his whole year's farm crop on a horse race.

Guest stars:James Westerfield, K. T. Stevens, Hope Summers, Archie Butler, Joe Benson, and Ralph Moratz

A bank-robbing gunman (Kevin Hagen) decides to hide out at the McCain ranch.

Guest stars:Josephine Hutchinson, Warren Oates, Rodolfo Hoyos Jr., Rhys Williams, Lee Van Cleef, and Hope Summers

Andy Moon (George D. Wallace) and his young son (Eugene Mazzola) take shelter at the McCain ranch.

Guest stars:Richard Evans, Kay E. Kuter, Kelton Garwood, Dick Wilson, Rhys Williams, Charles Tannen, Archie Butler, and Snub Pollard

The daughter (Jennifer Lea) of a prosperous rancher (Douglas Kennedy) is found murdered.

Guest stars:Paul Carr, Warner Jones, George N. Neise, William Benedict, Richard Alexander, Johnny Collier, and Archie Butler

An old friend (Richard Anderson) of Lucas' arrives in North Fork to open a gambling casino.

Guest stars: Steve Conte, Dayton Lummis, George Macready, James Flavin, Bill Quinn, Harlan Warde, Whitey Hughes, Jack Tornek, Archie Butler, Rod McGaughy, and Snub Pollard

While ill with typhoid fever, Mark has a vision of his mother (Marian Seldes).

Guest stars: Milton Parsons, Karl Swenson, Hope Summers, Natividad Vacío, Jeanne Wood, Dennis Cross, John Abbott, and Chuck Hicks

Lucas learns why a young soldier deserted.

Mark learns a new preacher is an impostor.

While on a train trip, Lucas and Mark are threatened by an escaped murderer. As if that weren't bad enough, the train is suddenly caught in a huge cloud of grasshoppers, forcing it to stop.

A singer in a dance hall asks Lucas to take care of her daughter in order to hide the child from the woman's ex-husband, who has come to North Fork to take her away.

Lucas tries to do a good turn for the town drunk, but things go awry when the man's son mistakenly believes that he is now the owner of Lucas' ranch.

An outlaw gang kidnaps Micah and threatens to kill him unless their leader is released from jail. Lucas must decide whether to turn loose the notorious killer or face the possibility of the murder of his friend Micah.

In order to rob the stage which is carrying $20,000.00 in cash, an unarmed outlaw informs Lucas, who is riding shotgun, that his son's life is in mortal danger if he doesn't hand over the money.

Lucas and Mark find themselves in deep trouble when their wagon breaks down while they're crossing the desert.

Town ne'er-do-well Brett Conway finds out that a couple who moved near North Fork and soon fell sick are actually ill with highly contagious and potentially fatal yellow fever. Knowing that Lucas was the person who initially discovered the couple, Conway threatens to spread the news of their condition to the entire town, thereby causing a panic, unless Lucas buys his silence.

Eddie's daughter (Gloria DeHaven), who is withholding criminal information and stolen money, comes to meet her father (John Harmon) and causes trouble for Lucas.

Guest stars:Bill Quinn, Peter Whitney, Ray Teal, Jeff Daley, and Kathleen Mulqueen

After a wanna-be bounty hunter (Harry Dean Stanton) kills a man (Gregory Walcott) wanted for a crime committed long ago, Lucas and Mark try to protect the widow (Sydna Scott) from learning about her husband's criminal past.

Guest stars:Robert H. Harris, Jack Elam, Jeff Connors, and Ted Stanhope

After Lucas accuses a newspaper writer's (Alexander Scourby) misleading articles of causing an innocent man's death, the writer begins writing articles about Lucas.

Guest stars:Joanna Moore, Brian D. Hutton, Chris Alcaide, Steve Darnell, Ian Murray, Whitey Hughes, and Archie Butler

An ailing gunfighter (John Dehner) comes to North Fork to die under a doctor's care in order to spare his family. But the gunfighter is being pursued by bank robbers (John Milford, Howard Ledig) from whom he stole robbery money.

Guest stars:Hugh Sanders, Bill Quinn, Glenn Strange, George Brenlin, James Parnell, and Archie Butler

After Lucas is blamed for killing a young man, an outlaw father and his two sons attempt to kill Lucas.

Guest stars:Denver Pyle, Warren Oates, Christopher Dark, Buddy Hackett, Rhys Williams, Bill Quinn, Archie Butler, and Whitey Hughes

Three gunfighters (John Anderson, Steven Marlo, Dennis Cross) use a cowardly barber (Whit Bissell) and his son to talk Lucas into a gunfight so they can kill Lucas and take over the town.