15. Obsessed

David Fanning is one of the world's most dangerous hit men, but Section One is powerless to stop him. Fanning possesses ""The Book,"" a collection of top-secret information damaging to Western governments, and if the Section makes any attempt on Fanning's life, the Book will be released automatically. When the Section's only way in is through Fanning's abused girlfriend, Nikita and Michael are forced to use any means possible to secure her loyalties, but her emotional instability could prove fatal to both of them.