Murdoch investigates the crash of a flying machine that killed a man, uncovering conspiracy and sabotage.

A toxic gas will be released into the city of Toronto, unless Murdoch can find a way to stop it.

Murdoch and Crabtree follow a murder suspect to Newfoundland.

Murdoch and Crabtree discover that a mysterious temple may house ancient treasure - and deadly consequences for anyone who dares to hunt for it.

Murdoch investigates the poisoning of an anti-prohibition politician while Margaret Brackenreid hosts a visit from radical temperance advocate Carrie Nation.

While Murdoch investigates a football player's death, Brackenreid gets caught up in the team's Olympic quest.

Murdoch investigates a surgeon performing cutting-edge organ transplants.

A spate of murders staged as suicides leads Murdoch to suspect a sequential killer targeting the elderly.

In an attempt to solve a murder, Crabtree and Constable Brackenreid go undercover at a boys school.

Murdoch investigates a car accident and uncovers sinister motives.

After obituaries are published in advance of two men's deaths, Murdoch discovers more intended victims with a member of Station House Number Four among them. He must keep them alive before their predicted demise.

As Murdoch investigates a murder with connections to vaudeville entertainers Harry and Al Jolson, Watts unravels a mystery about his own family.