|Season 2, Episode 13|
|Air date||February 3, 2012|
|Written by||Kalinda Vazquez|
|Directed by||Brad Turner|
Clean Sweep is the thirteenth episode of Season Two and thirty-fifth episode overall.
Percy has his Guardians hold the members of Oversight hostage until Amanda agrees to his demands. If she doesn't, the Guardians will shoot all the members of Oversight and release a deadly gas inside Division that will instantly kill everyone, including Amanda. Nikita is torn between letting the enemy fall and saving the innocent lives inside Division. Meanwhile, Sean is frantic to save his mother from Percy's clutches and turns to Nikita, Michael and Alex for help.
|Sean teams with Nikita and Michael to rescue his mom (and the other members of Oversight) from the Guardians.
Amanda lets Percy out of his glass prison and she retains control over Division. Alex returns to Division to prevent all of Division being killed by Percy and Clean Sweep. Nikita, Michael and Sean all go to Oversight to try and save them from the Guardians and ultimately Percy.
Unfortunately, they fail and all but Senator Madeline are killed by the Guardians as ordered by Percy. Gogol sends gunmen after the black boxes and the Guardians. Instead they walk right into Percy and Nikita. They shoot Percy, but don't get Nikita or the black boxes (which were already destroyed). Amanda's secret caller is revealed to be Gogol head, Ari Tasarov. He is working with her against his boss, Semak.
Amanda suggests to Alex that she reveal herself to the world as Alexandra Udinov. With Oversight gone, Senator Pierce offers to clear Nikita's name with a presidential pardon if she brings down Amanda and Division.