A barroom fight between an American rancher's son and a Canadian farm boy result in the shooting death of the American. Jack and Clive attempt to take the prisoner to Ft McCloud, but the dead boy's father wants revenge.

A Mountie mail wagon is ambushed and robbed, and the crime is made to look like an Indian attack. Jack and Clive are suspicious, and soon determine that the thieves were Mountie deserters. Meanwhile, Marie's nephew comes to town to visit.

Jack reluctantly hangs a prisoner, but the prisoner survives the hanging. When Jack refuses to hang him again, the judge sends in a government appointed hangman. Barry Joe's only chance for clemency is if he names his accomplices. The problem is, his throat is so badly damaged that he can't speak.

The lawmen are troubled when an aging gunfighter comes to Bordertown, followed by glory-seekers who are out to kill him, and a novelist, who wants to write a story about him.

Liam becomes infatuated with a blind gypsy fortune teller who is being forced by her employer to convince men that their future includes earning a fortune in a new business venture, so he can sell them stock in a non-existent silver mine.

A young easterner challenges his employer to a gunfight after he is cheated out of part of his wages. Jack attempts to teach the young man to shoot.

Stricken with guilt, Jack resigns after he accidentally kills a saloon girl during a dispute with a gang of ruffians. With the marshal's position vacant, the gang takes over Bordertown, and the Mountie is powerless to keep law and order on the American side of town. In attempt to regain order, he ""appoints"" Couteau temporary marshal.

Carrying large sums of money, Zack and Wendell escape into the woods when the stage coach they are on is held up by thieves. With the robbers in pursuit, they make their way back to Bordertown, eluding not only the robbers, but the lawmen.

Wendell buys an unsafe mine, and sells half partnership to an unscrupulous businessman, who hires ill, underfed Chinese laborers to work the mine.

When Artimus Boone is caught trying to sell a gun belt that once belonged to Lucas Craddock, Jack goes on a quest to confront his father's killer, and must come to terms with the fact that his father abandoned him as a child.

Clive's former flame, Anna, the wife of his deceased friend, stops in Bordertown to visit her husband's grave, and rekindles her relationship with the Mountie. Meanwhile, Jack and Clive break up a group of moonshiners, but one of them escapes, vowing revenge on Clive.

Clive and Anna plan their wedding. Delighted that his son is getting married, Clive's father arrives from Toronto to perform the ceremony. On the day of the wedding, the surviving moonshiner takes his revenge on Clive.

When a young cowboy becomes ill on Zack Denny's whiskey, the women of the town organize a revolt to close the saloon and destroy the whisky. Meanwhile, Marie discovers that the whiskey has been tainted with a chemical, but when she confronts the distributors, she is kidnapped by them.

When Willie finds a wooden grave marker in the cemetery with Jack Craddock's name on it, Jack disregards it as a prank. Distressed that Willie is leaving for Paris with his father, he decides to accompany them part of the way, but on the trail, they are apprehended by the brother of an outlaw Jack had killed, intending to kill the marshal on the same spot where the brother was buried.