The first season of the television sitcom Brooklyn Nine-Nine premiered September 17, 2013 on Fox and concluded March 25, 2014 with 22 episodes. The season stars Andy Samberg as childish but skilled detective Jake Peralta.
Raymond Holt becomes the captain of the NYPD's fictional 99th precinct and almost immediately clashes with Jake Peralta, who's as immature as he is skilled at solving crimes. Despite their clashing personalities in their work approach, both learn to tolerate and respect each other while solving crimes, and establish the precinct's annual Halloween heist in the process. Jake's partner, Amy Santiago, repeatedly tries to ingratiate herself with Holt, as she's a fan of his work. Jake and Amy have an ongoing bet over who can get the most felonies, which ultimately ends with Jake winning. He takes Amy on a fake date but starts to develop actual feelings for her in the process.
Jake's friend, Charles Boyle, struggles in his romantic life as he has a crush on fellow Detective Rosa Diaz, who does not reciprocate his feelings. He is awarded with a Medal of Valor after he is shot in the buttocks while protecting Rosa from a criminal with a grudge against Holt. At a party thrown by Holt and his husband, Kevin, he enters a relationship with a food author named Vivian Ludley and becomes engaged to her, but the two break up when Charles refuses to move to Canada with her. Meanwhile, Sergeant Terry Jeffords struggles to return to the field after the birth of his twin daughters, but eventually overcomes his fears.
Amy begins dating her old boyfriend Teddy Wells, much to Jake's jealousy. Jake eventually uncovers a large conspiracy while investigating a civic leader with Amy and Holt's help, forcing him to go undercover for the FBI to investigate. Before he leaves, Jake confesses his feelings to Amy. Charles is shocked to find that after Jake's departure, he (Charles) slept with the precinct's sardonic civilian administrator, Gina Linetti.
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The first season received mostly positive reviews, with many praising the cast, setting, and humor, although the Boyle-Rosa storyline throughout the season was criticized. The review aggregator website Rotten Tomatoes reports an 89% approval rating, with an average score of 7.32/10, based on 57 reviews. The website's consensus reads, "Led by the surprisingly effective pairing of Andy Samberg and Andre Braugher, Brooklyn Nine-Nine is a charming, intelligently written take on the cop show format." Metacritic gave the first season of the show a weighted average rating of 70/100 based on 33 reviews, indicating "generally favorable" reviews.