Season four opens with the aftermath of last year's finale and the squad adjusting to new realities.
Jake and Amy's relationship continues to be one of TV's healthiest and funniest couples.
The Halloween heist reaches legendary status with an installment fans will debate for years.
Holt navigates NYPD politics with the strategic mind of a chess grandmaster.
Rosa's intensity gets channeled into a case that showcases Stephanie Beatriz's incredible range.
Terry handles a personal situation with the emotional intelligence that makes him the squad's heart.
Boyle's parenting journey provides comedy that's both absurd and surprisingly relatable.
Amy achieves a career goal that she's worked toward since the series began.
The ensemble delivers one of the season's best episodes with every character getting a moment.
Jake and Holt's relationship reaches a pivotal moment that honors four years of development.
The squad tackles a tough case that brings out both their detective skills and their humanity.
Gina's last episodes give Chelsea Peretti room to make the character unforgettable.
Rosa and Jake team up for a case that tests their very different approaches to detective work.
The show balances comedy with increasingly mature themes as the characters grow.
Terry takes a stand on an issue that matters, and the show handles it with grace and humor.
Boyle and Rosa share a scene that celebrates how far their friendship has come.
The fourth season builds toward its finale with the confidence of a show at the top of its game.
Holt faces his biggest professional challenge, and the squad has his back without hesitation.
Jake and Amy face a relationship milestone that Andy Samberg and Melissa Fumero play perfectly.
The season finale delivers an emotional punch that proves this show can do drama as well as comedy.
Season four wraps with the Nine-Nine facing uncertain times but facing them together.
The fourth season closes with a cliffhanger that had fans campaigning to save the show.