Seasons & episodes

Duke and Bill are rescued from Indians by a stranger. He joins the train which is headed to Fort Chacon. Unknown to them he is an Army officer. Members of the train are offered stolen Army supplies creating a problem for the officer.

Wealthy Engel has used psychopathic Harry Diel as a proxy during the Civil War to save Diel from jail but Diel plots on the train as Engel's employee to usurp Engel's business by making himself appear a cuckold to Engel among other wiles.

With Chris gone Bill is in charge of the train when Barnaby goes overboard in his pranks. After messing with a wagon wheel, Bill orders him to fix it by himself causing Barnaby to break his leg causing a major rift between them.

Kim Case is returning home during Indian wars after schooling in the east although her parents have died. She is anxious to return to the man she loves, Lance Starbuck, who is an Indian raised by an Army Major from a young age.

Duke stops by the town of Stark Bluff looking for a friend and his wife who had formerly been on the wagon train. He finds out that the friend is dead, and his wife has been forced to work for ruthless saloon owner Zeb Stark, who bosses the town, including the judge and sheriff. When Duke tries to help her he is framed for killing a deputy, and Stark uses Duke's life as leverage to force the woman to marry him.

Coop brings Link Cheney to the wagon train after the professional gambler is wounded by sore losers in a game. Link is nursed back to health by Dorthea Gillford, and the two fall in love, but Dorthea hopes Link will quit gambling.

Barnaby and Charlie talk Chris Hale into hiring legendary mountain man Zebedee Titus as a scout. The nearly 80 year old Zeb's failing eyesight leads to problems including Coop's being captured by the Comanche Zeb couldn't see.

As the wagon train approaches the end of the trail, Hale's crew and passengers deal with birth, death, romance, a clash of different faiths, anger, gambling, a medical emergency, and a cooking contest as they prepare to separate.