Captain Ray Holt takes over Brooklyn's 99th precinct, which includes Detective Jake Peralta, a talented but carefree detective who's used to doing whatever he wants. The other employees of the 99th precinct include Detective Amy Santiago, Jake's over achieving and competitive partner; Detective Rosa Diaz, a tough and kept to herself coworker; Detective Charles Boyle, Jake's best friend who also has crush on Rosa; Detective Sergeant Terry Jeffords, who was recently taken off the field after the birth of his twin girls; and Gina Linetti, the precinct's sarcastic administrator.