NorBAC investigates a mysterious outbreak that is hospitalizing cyclists on the course of the Tour Cyclo Quebec. Meanwhile, Bob embarks on a controversial hyperbaric chamber treatment to deal with his brain infection and memory loss.

Ari Millen, David-William Martel, Francois Klanfer, Geraint Wyn Davies, James Allodi, Jeff Roop, Madeleine Workman, Patricia Marceau, Rosa Laborde, Sarah Carver, William Kowalczyk