The Pontiac Bandit aka Doug Judy, is back in custody, after jamming up Jake and Rosa in his previous encounter with them. But when Rosa discovers that Judy knows the whereabouts of the "Giggle Pig" drug leader, Capt. Holt offers the perp a plea deal to help track down the drug kingpin. Meanwhile, Gina and Boyle are nervous that their parents might be getting too close, and Santiago makes Holt a Christmas gift against his wishes.

Jake and Amy have a case early in the morning, so they stay at a hotel overnight. Jake invites Sophia and Amy's boyfriend not knowing that Amy is planning on breaking up with him.

While attempting to catch a drug dealer, Jake and Charles reluctantly join forces with the nerdy lead investigator at the U.S. Postal Service, Jack Danger. Meanwhile, the rest of the team helps Amy quit smoking.

The precinct goes into lockdown mode on Thanksgiving night, and Jake, who was left in charge, is confident in his ability to keep spirits high and avoid chaos. Amy is less confident, as things spiral out of control.

Jake hits it off with a woman at a bar, but later finds out she is the attorney for a perp he is trying to put in jail. Meanwhile, Gina and Charles work to put their relationship behind them, and Amy is pressured into running for union rep.

There's a mole in the precinct and Holt and Jake need to find out who it is before Deputy Chief Madeline Wuntch gets wind of it. Meanwhile, Terry and Rosa visit a "silent" disco to uncover new leads for their new drug task force.

The Peralta/Holt annual Halloween bet continues when Jake challenges the Captain that he can steal his watch before midnight. Meanwhile, Gina is upset that her dance team, Floorgasm, kicks her off the squad and Terry confronts her about her bad attitude.

The precinct holds a competition while on stand-by for a motorcade, Holt has another run-in with Deputy Chief Wuntch, Boyle needs to get an incriminating videotape from Hitchcock, and Rosa thinks Peralta still has feelings for Santiago.

Holt's old nemesis is in charge of the precinct inspection, Peralta and Jeffords investigate a stabbing before Jeffords goes in for his vasectomy, and Boyle needs a plus-one for his ex-wife's wedding.

Jake's undercover operation ends in a successful sting, until he learns one mobster has gotten away. Jake enlists Charles' help to track him down, and Holt tests the squad with practice drills. But can Charles keep his new secret from Jake?