While Amy continues to work on Figgis' sister Maura on the inside, Jake, Rosa and Holt team up with Bob Annderson to track down the FBI mole. Meanwhile, Gina helps Terry work out the culprit behind a press leak.
With Pimento's life still in peril, Captain Holt calls on an old friend in the FBI to help with a seemingly impossible heist. Meanwhile Amy makes a breakthrough while undercover, and Terry and Gina discover an information leak in the Nine-Nine.