Nick and Schmidt go out on a "bro's night," but quickly become infatuated with, and highly competitive over, a beautiful woman attracted to sadness. Meanwhile, Winston falls for a girl with absolutely no interest in him, which only makes him more attracted to her. Then, Jess' decision to have a night alone in the loft doesn't go as planned and involves another round of the drinking game "True American," and a surprising development in her relationship with one of the loft mates.

Jess is ready to tell Nick of her true feelings for him. Meanwhile, Nick takes a meeting with a book publisher, as Aly helps Winston reconnect with an important person. Then, Cece and Schmidt receive big news.

Schmidt makes a last ditch effort to convince Cece's mom to come to their wedding, but in doing so, he might miss the special day himself.

Cece's wedding day finds Jess and Nick making a decision about their relationship. Meanwhile, Schmidt schemes with a typically overenthusiastic Winston to sabotage the nuptials, although a shocking announcement may be bigger than anything he plans.

Jess is ready to paint the town purple when a chance encounter finds her and best friend Cece invited to a once-in-a-lifetime mansion party thrown by music legend Prince. Not wanting to miss out on the fun, Nick, Schmidt, Winston and Coach are determined to crash the festivities, building toward an Unforgettable ending.

Jess comes to a conclusion about her romantic feelings for Nick and she struggles to tell him - until she's hopped up on pain medication. But after admitting her feelings, she finds out he may have been keeping something from her. Meanwhile, Schmidt becomes obsessed with buying a fish, which Winston sees as a metaphor for Schmidt's unresolved feelings toward Cece and Nick plans a bar promotion to impress the bar owner (guest star Odette Annable).

In a series of flashbacks, Jess, Nick, Schmidt, Winston and Cece tell one another how they each lost their virginity. Not surprisingly, when they realize the stories directly affect their present day sex lives, one relationship will change forever.

As Coach prepares to move out of the loft, Schmidt also decides to get rid of his non-essentials and in the process discovers what is truly important to him; Jess and Nick reminisce about their “sex mug” and wonder if they still have feelings for each other.

Nick struggles to throw Jess the perfect birthday party, while Schmidt works overtime to help out Cece in her new job as bartender and Winston and Coach engage in a bake-off.

The gang takes a tour down memory lane, which includes a final round of "True American."

While training for a marathon, Jess discovers that Cece has been keeping a secret from her, and their friendship is put to the test. Meanwhile, Winston can't handle being the only one who knows about Cece and Schmidt, and Nick reluctantly asks for Schmidt's help as he tries to juggle dating two women at once.

When the gang attempts to juggle multiple holiday parties in one night, Jess tries to avoid a remorseful Sam, Nick tries to keep up with a sexually adventurous Angie and Winston panics when he gets a cranberry stuck in his ear.

When Schmidt discovers a previously unknown, yet highly-coveted parking spot, Jess and the roommates battle it out to see who will get to use it. Meanwhile, Winston has a hard time finding a condom when he gets an impromptu invitation from Daisy.

Refusing to accept that their crazy days are behind them, Jess and Cece abandon their low-key bachelorette party plans and seek a night out to top all others.

On the night before the wedding, Nick and Winston try to help Schmidt re-write his vows and Jess, thinking that Sam is going to propose to her, rallies the gang into playing True American to avoid giving him an answer.

As Jess continues to stay with her dad in Portland, they unexpectedly help one another with their love lives. Meanwhile, Nick turns to a reluctant Aly for help with his relationship with Reagan, and Schmidt contemplates using his first name.

Against Nick's wishes, Jess makes it her mission to get the loft's cantankerous landlord to like her. In doing so, she inadvertently jeopardizes their living situation and the guys are forced to admit they've made some "unofficial" changes to the apartment. Meanwhile Schmidt tries to decipher what he thinks are mixed signals from his boss Kim.

The gang attends a dating convention, where Cece hopes to find a prospective husband - even as Schmidt hopes to win her back. Meanwhile, Winston's mojo returns, and Jess and Nick get put in a compromising position in front of Dr. Sam.

Jess' dad chooses the worst day to pay the loft an unexpected visit, forcing a nervous Nick to spend the day alone with him. Jess finds herself with huge opportunity for a new job on the day before Cece's wedding. Schmidt must take a look in the mirror and confront his real feelings about Elizabeth. Meanwhile, Winston psyches himself up for his huge surprise birthday celebration, which no one seemed to remember to throw for him.

Jess accidentally walks in on Nick naked, sending his self-confidence to an all-time low - just after an attractive co-worker agrees to go out on a date with him. Meanwhile, Winston becomes obsessed with learning pop-culture references online.

Jess' sophisticated date with Russell doesn't go as planned. Meanwhile, Nick's college friend visits and brings out Nick's inner frat boy to help him get over his break-up with Julia. Also, Winston panics when Shelby goes on a "girls" vacation and Schmidt and Cece try to keep their relationship under the covers, but one of the friends finds out their secret.

Nick becomes convinced that a promising student in Jess's adult writing class is a murderer.

As part of Winston's police academy training, the loft must pass a home visit and background check, which shouldn't be a problem until Jess admits she might be hiding illegal substances in her closet.

It’s a lockdown in the loft when Schmidt’s arachnophobia forces the group go on a spider hunt. In the midst of this chaos, Winston inadvertently makes Jess think that Cece is in love with Nick.

Jess and Nick make two life-changing decisions and Winston and Aly's big day arrives.