Andy, Chris and Dov train for the mounted unit, while a pregnant woman calls in a fake bomb plot, leading 15 Division to a dangerous gang.
Percy continues his plan to take back Division by threatening to kill Nikita's mentor Carla, the woman who took Nikita off the streets when she was a junkie. Determined to get to Carla before Percy, Nikita uses Madeline to send her a message.
When a bomb goes off in Washington D.C., the team suspects an innocent man is being framed for the crime, Kilroy tracks a notorious hacker.
Richard is determined to get to know Sutton's friends outside of the office and invites the girls to dinner, but things don't quite go as planned.