Murdoch investigates an explosion inside the morgue as a private citizen while he and his fellow officers fight to reopen the station house against Mayor Vaughan's orders.

Inspector Choi is taken hostage in a roadside inn while transporting a criminal back to Toronto. The Crabtrees must make a difficult decision about their future when George gets a job offer.

A contestant is murdered during the "Toronto's Smartest Man" battle of the wits, leading Murdoch to join the contest to see if he can puzzle out who the killer might be.

Constable Roberts investigates the death of an old friend in his hometown, defying local police who rule it accidental. Murdoch's son Harry moves in, but it's a tight fit in his rooming house.

Murdoch pursues Terrence Meyers who is suspected of murdering two men and committing treason. Watts tracks down a man's neighbour who vanished while making a chocolate treat.

A Japanese scholar is kidnapped and Inspector Choi suspects his estranged brother is involved.

A crime novelist pushes her way into Murdoch's investigation of an attorney murdered at his own retirement party.

Effie enlists Murdoch's help to defend a maid accused of killing the owner of a prominent fashion label, while Violet's neighbourhood safety program proves to be anything but safe.

Murdoch pursues a thief when a diamond tiara is stolen during a special Christmas event, while Margaret Brackenreid tries to convince Anna Pavlova to perform in a charity Nutcracker ballet.

After wishing on a mechanical soothsayer Ogden descends into a house of horrors where psychopath James Gillies is alive.

Murdoch investigates an astronomical phenomenon with a strange impact on his colleagues’ behavior and dire implications for Toronto.

Murdoch investigates a murder at the Newsome Estate, which has declared itself a nation.

Murdoch's investigation of a plane crash that killed the pilot reveals a nefarious plot linked to James Pendrick.

Murdoch suspects the sudden death of a man at a gospel revival is connected to a fiery charlatan preacher and nun.

Murdoch's investigation of a murder at an opium den intersects with Brackenreid's pursuit of Nomi's missing friend.

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

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

When Crabtree and Effie attend a celebration of Charles Dickens' birth, the host winds up mysteriously dead.

Murdoch and Brackenreid are stunned when an actor in a performance of Hamlet dies on stage before their eyes.

Tippy Longfellow, Murdoch's neighbor, convinces him to investigate a lost letter with a death threat.

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

On Christmas Eve, Murdoch and Choi investigate the disappearance of a trouble-seeking drunk.

Murdoch and Ogden are named as accomplices when Terrence Meyers faces charges of treason.

Nearly exonerated, Ogden is implicated in the warden's murder. Murdoch delves into the death of a fraternity pledge.

Odgen, Watts, and Effie attend a health retreat run by a charismatic leader where a fellow guest dies mysteriously.