In the Season Three premiere, a bomber nicknamed "Vudu" is threatening Toronto. Through most of Part Two, he is engaged in a plan to plant bombs in the underground service tunnels beneath the downtown area in order to maximize the area of devastation. But he has a special plan within this: to trick a woman on the inside into carrying the most powerful of his bombs. To this end, he runs into Tracy Vetter accidentally-on-purpose at a coffee shop, picks her up, and leaves behind the bag he was carrying—a bag that Tracy then proceeds to take with her, intending to return it the next time she sees him. In fact, the bag contains a bomb.