With their lives in danger, Murdoch searches for Anna Fulford and her son in Montreal.

To save his former lover and son, Murdoch makes a risky deal with a Black Hand henchman.

Murdoch pursues Inspector Giles after he escapes from prison to vindicate a murderer.

When their train derails, Ogden and Brackenreid suspect it was sabotage to hide a murder.

When Murdoch investigates the murder of a ladies man, Crabtree’s aunt is the prime suspect.

At Halloween, Murdoch pursues a killer dressed as a clown who is terrorizing romantic, young couples.

To solve an inmate's murder, Murdoch sends Ogden undercover at a woman's reformatory.

While investigating a stabbing, Murdoch and Brackenreid inadvertently discover spy Terrence Meyers' hidden civilian life.

Murdoch investigates when Higgins goes missing while searching for his kidnapped sister-in-law.

Murdoch suspects the murder of a nasty, satirical cartoonist has links to city politics.

Murdoch and company's Christmas at an idyllic country estate turns potentially deadly.

Murdoch investigates the suspicious death of a stage manager after a going away party for Mary Pickford.

When Murdoch investigates the mysterious death of a colleague of Sigmund Freud, he receives unexpected psychoanalysis.

Murdoch arrests a man for trying to kill a woman he claims is a witch, shortly thereafter he dies mysteriously while in custody.

Murdoch's son Harry is visiting from boarding school when William and Julia are abducted by a nefarious, vengeful foe.

A charity basketball game takes a grim turn for Murdoch and his colleagues when a friend of the game's inventor is murdered.

Violet Hart investigates when a protester dies at an event for Black people's rights.

Murdoch suspects someone in a vagrant encampment robbed and killed a young woman.

Murdoch investigates after a murder is transmitted over James Pendrick's new invention.

Murdoch investigates the murder of a musician whose death was narrated in a blues song.

When Crabtree's mentally deranged kidnapper, Amelia, turns herself in, he braces for trouble.

When a Murdoch lookalike is murdered, danger is near. Murdoch must find the murder before the murder finds him.

Season Finale: With his family in hiding, Murdoch tries to discover who is behind attempts on their lives.