<P> The fourth season of the television sitcom Brooklyn Nine - Nine premiered September 20 , 2016 on Fox and ended May 23 , 2017 with 22 episodes . </P>
<P> The fourth season of the television sitcom Brooklyn Nine - Nine premiered September 20 , 2016 on Fox and ended May 23 , 2017 with 22 episodes . </P>
when does season 4 of brooklyn 99 come out
when does season 4 of brooklyn 99 come out
September 20 , 2016
September 20 , 2016