Amy takes charge of the Nine-Nine during a citywide blackout, while Jake hits one snag after another as he races to her side.

When an apparent prank destroys a key piece of evidence, Holt taps the best detective he knows to interrogate the squad and bring the culprit to justice.

Holt turns to Jake for help after a family member goes missing. Rosa battles Amy's ex for a coveted prize. Boyle and Terry team up on a business scheme.

Holt risks his career by refusing to let his greatest nemesis have the last word. Boyle and Terry compete for Jake's tickets to an exclusive kid event.

Adrian Pimento resurfaces with a "Finding Dory"-esque memory problem. Jake tries to keep a secret from Boyle. The squad attends a mandatory HR seminar.

When an interim captain arrives at the Nine-Nine, Jake sets out to prove she's way too good to be true. Boyle rebrands his image.

The reappearance of Doug Judy lands Jake in hot water. Terry scrambles to replace Holt's treasured keepsake. The Nine-Nine gets a new vending machine.

A pudgy pooch, handcuffs and various other disasters delay the crowning of the squad's newest Amazing Human/Genius in the annual Halloween Heist.

Jake finds his authority tested and thunder stolen by a beat-walking Holt amid a manhunt. Amy turns to Rosa for support during a personal crisis.

Jake revives the Jimmy Jab Games, with Boyle going full-on P.T. Barnum as host of the competition and Holt's timid new partner reluctantly joining in.

Jake doubles down on his daddy issues during a tense family reunion. Holt turns into a musical taskmaster over Terry's audition with the NYPD band.

Time flies as Jake and Amy focus on their family plans. Holt bristles over his tedious new job. A tooth-wielding Hitchcock searches for his Cinderella.

The squad suspects an inside job when guns and cocaine connected to a notorious crime boss go missing from the Nine-Nine.