Sean attacks Nikita and Michael in order to protect his mother. Meanwhile, Percy threatens to destroy Division unless Amanda releases him.
With Michael (Shane West) out of town, Nikita (Maggie Q) turns to Owen (guest star Devon Sawa) to help her track down and steal another black box from a Guardian. Unfortunately, she discovers that Owen is working for an unlikely employer that could jeopardize Nikita’s whole operation.
Birkoff finds Nikita’s birth certificate, and Michael and Nikita find Nikita’s father, but it’s not the reunion she had hoped for; and Percy reveals to Alex that the black box Nikita has holds secrets that could help her avenge Alex’s father’s death.
Nikita and Michael probe a corrupt Division program and reunite with Owen, who is looking for Dr. Mars (John Ralston), the program’s mastermind. Mars also created the Regimen drug that has taken control of Owen, and he hopes the doc can provide a cure.