Night One: When an American-engineered strain of smallpox is unleashed in Canada, during a G8 summit, CDC officer Thom Lightstone uncovers a deadly conspiracy linked to a web of government secrecy and corrupt corporate agendas.

Night Two: As the bioterrorist crisis escalates and Thom uncovers a deeper political conspiracy, Maria desperately seeks justice for her murdered son, who has fallen victim to the actions of a corrupt pharmaceutical company.