When the FBI takes over a high-profile case, Jake keeps digging. Amy and Rosa negotiate with O'Sullivan and the police union.

Gina invites Jake and Terry over to her new place. Holt takes an interest in Nikolaj's education. Rosa rejects Amy's offer of a helping hand.

Amy returns from maternity leave. Jake and Rosa work a difficult case.

Captain Holt and Amy manage an understaffed precinct. Jake and Charles investigate.

Jake takes an old friend for a ride.

Jake and Terry go undercover at a costume-packed fan convention when their favorite fantasy author reports his much-anticipated manuscript stolen.

Jake's attempt to connect with his half sister goes off the rails. Terry tries and fails to show his flexibility. Gina sets Rosa up on a blind date.

Amy and Jake hear conflicting stories as they investigate a sexual assault accusation. Holt refuses to believe an old nemesis is really dead.

Jake and Terry accompany Charles to the funeral of his Great Uncle Pappy — and uncover a family secret. Rosa nudges Holt back into the dating pool.

After Gina makes a life-changing decision, she bestows a series of gifts on the squad. But first, an interpretive dance ...

A visitor from Latvia causes Charles and Jake to investigate Nikolaj's family. Holt and Amy bring in famed forensic scientist Dr. Yee to help close a case for Rosa.

The squad takes up Holt on an offer for a weekend getaway.

Jake and Amy create a system to balance work and childcare and Rosa gets a new houseguest.

Charles enlists Jake's help in tracking down his son's favorite toy for Christmas, and the two find themselves accidentally facing off against a Latvian criminal ring as a result. Back at the precinct, the team gears up for their annual Christmas carol competition against their sworn enemy: the MTA.

Nemeses plague the squad, as Jake and Amy's big day gets derailed by the Vulture, and Charles must find his missing equine foe, Sgt. Peanut Butter.

Jake brings Amy in on an arson case connected to her celebrity crush, a crossword puzzle author. The Nine-Nine gets a sweet new detective car.

After realizing they were suckered into a pyramid scheme, Jake and Charles try to take down the cultish group. Amy deals with an overeager officer.

Jake and Gina attend their 20th high school reunion. Back at the Nine-Nine, Charles helps Rosa with her love life.

A lovers' spat leads to trouble on the job as Jake and Amy chase down a new street drug. A parking mishap drives a wedge between Holt and Boyle.

Jake and Amy volunteer to house-sit for Holt, with disastrous results. The chemistry between Rosa and Pimento heats up.

As Jake struggles with his first case back at the precinct, he encounters Jess Day, who is visiting New York, and enlists her to help him find his suspect. Meanwhile, Holt researches ways to increase office morale and Amy tries to figure out why Rosa keeps taking such long breaks. The crossover continues on New Girl S06E04 Homecoming (II).

Jake and Rosa tackle a case of a missing laptop on the set of a long-running TV police procedural. Terry’s vengeful ex takes over the audit.

A familiar face pops up when disaster strikes Charles's food truck. Rosa offers to help Amy pick out a wedding gown. Holt sets up a Twitter account.

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

Amid planning for a vow renewal ceremony, Holt makes a big announcement — one that he asks Jake not to share with Amy. Plus, Cheddar wears a bow tie!