Jess pretends she's someone else when a handsome stranger mistakes her for his blind date. Meanwhile, a patron at Nick's bar claims to be Nick from the future, and Winston's disapproving mother pays him a visit.

Jess and Nick examine their friendship. Elsewhere, Schmidt hopes to impress an attractive Republican by pretending to be one of Mitt Romney's sons.

Jess gets a job as a zombie at a haunted house, but is more frightened of her changing feelings towards Sam. Schmidt and Cece are perfectly matched in the costumes they're wearing, while Winston and Shelby are worlds apart in theirs. Nick gets a visit from a former college crush who shows her affection in a scary way.

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.

Jess and Sam go on a weekend getaway with Nick and Angie. But this might not be the trip they expected when Jess starts to party and trouble begins. Could jealousy get in the way of a good time?

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.

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 applies for a job at a progressive new school, but things take a turn when she finds out the principal is dating her ex-boyfriend, Sam. Meanwhile, Nick gets a cold and Schmidt quarantines the roommates to prevent himself from getting sick before his big presentation.

When Jess is served a restraining order by her ex-boyfriend, Sam, she sets out to clear her name with Winstons help. Nick and Schmidt plot against the owner of a trendy new bar that opened on their street.

Jess invents a male alter ego, "Jeff Day," in order to buy a new car from a sexist salesman, but her plan backfires when both Nick and Sam arrive at the dealership pretending to be him. Meanwhile, Schmidt and Cece panic when Winston decides to bring his new prankster girlfriend, Rhonda as his plus one to their wedding.

Despite being happy with Sam, Jess confesses to Cece that she had a sex dream about Nick. And Schmidt attempts to help Winston land Furguson a cat audition when he finds out Aly's boyfriend is a talent agent for pets.

Jess meets Sam’s female best friend, Diane. Meanwhile, Nick is worried Gavin will disappoint Schmidt again and Winston is offended by a reaction to a birthday gift.

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.

The gang gathers for a one-year memorial service for a beloved friend. Meanwhile, Jess discovers Coach owes Nick a large sum of money.