Murdoch investigates a car accident and uncovers sinister motives.

Murdoch makes a surprising discovery at a dolls house fair; in one of the houses the artist has placed a hand firing a gun. This is no ordinary model - it’s a crime scene. Murdoch finds the creator of the streetscape, an autistic 19-year-old, Lydia, who communicates best through model building. No one has reported a murder yet, but using the model’s intricate clues left by Lydia, Murdoch discovers that someone indeed has been killed – but what happened and why? Someone is far from happy by his investigations and things begin to get even more sinister in the neighbourhood.

A jailed Murdoch must prove his innocence amid police and government corruption after the constables are ambushed, Ogden is kidnapped, and Brackenreid goes missing.

Murdoch investigates the claims of a man who says his time travels to the future provided him with information that allowed him to stop crimes, while the New Year's Eve Policeman's Ball offers exciting personal possibilities for the 20th century.

Murdoch and Brackenreid unwittingly put their careers at risk when they investigate high-level police corruption.

Murdoch finds himself with amnesia and running for his life on the streets of Bristol, England, very far from home, if he knew where his home was. Taking refuge in a pub, he gains the assistance of a vivacious barmaid who helps him reconstruct his memories, escape his pursuers, and foil an assassination plot.

Workers laboring to build a bridge across the Don River make a grisly discovery – entombed in the swamplands bordering the river are the well-preserved bodies of a man and a woman. Called to the scene, Murdoch and Ogden quickly determine that the couple was murdered. When a third body is then discovered, Murdoch has to re-evaluate the nature of the crime.

When a woman is found murdered at a costume party held in honour of the late Lewis Carroll, all clues point to a man dressed as the Mad Hatter. It seems obvious that this is the killer? This is not welcomed news as this part was played by Murdoch himself. Murdoch becomes the Alice In Wonderland prime murder suspect and it’s up to his team to prove their favourite detective is not the killer – or can we be sure of that?

Detective Murdoch is taunted by a deranged criminal who leaves talking dolls with macabre personal messages at each crime scene.

Murdoch's own colleagues are suspects when a police officer's skeleton is discovered in the basement.

During a hunt for a killer who collects macabre trophies, Murdoch becomes a target.

A family celebration of Alexander Reynolds' 60th birthday is dampened when he's found with a knife plunged into his chest. Murdoch is called in and soon discovers the victim was universally despised by his kin. Reynolds' family instantly falls under suspicion but the field of suspects narrows considerably when daughter Charlotte Reynolds appears in a blood soaked dress and confesses to killing her father.

With his colleague sentenced to hang for murder, Detective Murdoch races to exonerate them and steps into a trap set by the real killer.

As their wedding day approaches, Murdoch and Ogden intervene in the trial of a woman accused of killing her husband.

While Crabtree serves time for the murder of his sweetheart's husband, Murdoch investigates an inmate stabbing that may be connected to the case.

A recording device made by Alexander Graham Bell assists in the investigation of a murder at a dinner honoring Helen Keller.

Murdoch suspects John is being framed for murder by Inspector McWorthy and Brackenreid goes after the corrupt copper.

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

After a ruthless inventor is killed at a convention, Murdoch's investigation is assisted by his idol, Alexander Graham Bell.

Two bank safe deposit boxes that were being transferred are taken by thieves and the crime is investigated by Detective Murdoch. The getaway driver for the thieves is killed.  While on scene someone claiming to be Sherlock Holmes shows up and provides some helpful information.  Dr. Ogden figures out that he is actually David Kingsley who at one time was treated for mental illness.  "Sherlock Holmes" appears to have the qualities of the fictional character of the same name such as the ability to "read" an individual or a crime scene.

Murdoch enlists some revealing detective work while investigating a murder at a nudist community.

Murdoch investigates a nanny's disappearance with the so-called real Sherlock Holmes.

Julia discovers a secret about her father upon his death; Brackenreid takes over a murder investigation.

Murdoch and the force have to confront more violence on the waterfront as they try and bring Brackenreid to justice. Dr. Ogden and Dr. Grace go head to head in court.

While applying for a loan to build his dream home for Ogden, Murdoch finds himself in the midst of a bank heist that puts his reputation at risk.