Déjà Vu All Over Again (S05E01)

Nikita returns to Section One to eliminate a pressing terrorist threat: a summit featuring leaders from multiple terrorist factions. She is paired with Marco O'Brien, a level 5 operative. O'Brien, a former police officer, was brought into the fold four years ago due to a blunder Nikita made, a detail he hasn’t let go of. As she navigates the dangers posed by the terrorists, Nikita also faces O'Brien's resentment and the animosity of several Section members, stemming from her involvement in the Center's assessment of Section operations.