La Femme Nikita (1997)

S1E5 Mother

A ruthless terrorist duo steals a nuclear trigger, having already wiped out a whole team of Section One agents. To recover the trigger, Nikita takes on the role of Helen's long-lost daughter, who was given up for adoption while Helen was incarcerated during her pregnancy. This deception brings unforeseen complications for both Nikita and Helen as they navigate their complex relationship.