On a special commercial-free edition of the fifth estate The Fear Within, a special investigation into Wednesday's attack in Ottawa and the wider events behind it. Two soldiers killed in a week. What was behind the attacks - and what went wrong? Plus startling new revelations about young Canadian men making their own journey to jihad. Join hosts Bob McKeown, Mark Kelly, Gillian Findlay and Linden Macintyre as the International Emmy Award-winning show returns for its 40th season.