Prions

NorBAC investigates an outbreak of prion disease (mad cow) in humans. The victims are spread out across North America. How are the cases connected? In the aftermath of Hiras's death, David (Peter Outerbridge) is determined to expose the fraudulent reverend from episode 3. David suspects his old friend Danny (Hugh Dillon), a hockey player, is using a dangerous performance-enhancing steroid.

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S01E05 - The Oldest Virus