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 & release a deadly gas inside Division that will instantly kill everyone, including Amanda. Nikita is torn between letting the enemy fall & saving the innocent lives inside Division. Meanwhile, Sean (recurring guest star DILLON CASEY) is frantic to save his mother from Percy's clutches & turns to Nikita, Michael & Alex for help.