Unexplained suicides may be linked to a gifted young woman, and Olivia expresses concern for Toby's health.

Toby and McCluskey investigate a government breach and try to determine who leaked a sex tape starring the Minister of Foreign Affairs.

A mobster may be innocent of killing his partner, and Toby must dine with the star witness to help identify the real killer before the trial begins. Elsewhere, Oz minds a pet ferret for Sandy.

Toby and Oz are taken hostage by two men posing as security guards, and a medical emergency may have the duo performing surgery.

Toby reads a reckless hacker who's linked to a blogger and a cyber-security expert during a cyber-crime investigation.

A wealthy businessman's baby goes missing after his SUV is hijacked en route to a hospital. There, Toby meets a gifted woman whose sketches seem to detail the child's kidnapping.

A CSIS agent's suspicious death kicks off a probe that exposes a high-stakes poker game, and the case pairs Toby with Michelle's estranged husband.

A judge is kidnapped and Toby meets a criminal mastermind during the investigation; Oz develops a crush on the hospital's head triage nurse.

A drug-racketeering probe has Toby dispatched to a cop bar to snoop on two detectives, but when one of the detectives collapses in the restroom and dies at the hospital, the case becomes a murder investigation.

A Russian consul general is murdered and his middle son confesses to the crime, but Toby isn't convinced the confession will close the case.

Toby passes a polygraph test and joins the IIB as a confidential informant, and is tasked with probing threats against a Conservative Party politician.

McCluskey asks Toby for help when she fears that an undercover operative may be in danger, which results in Toby revealing his gift to McCluskey.

Toby helps a woman with amnesia regain her memory, which includes some unsavory corporate behaviours. But his actions draw the attention and suspicions of Sgt. Michelle McCluskey at the IIB.