Brooklyn Nine-Nine: The Best Halloween Heist Episodes, According To IMDb

Season 6's Halloween Heist episode has the honour of being the first heist episode to not be set at Halloween at all.

To distract the Terry from his stress of taking the Lieutenant's exam, the squad decides that Cinco De Mayo is the ideal time for an impromptu heist. This is perfect, as the Halloween Heist that year was cancelled due to the squad attending another heist.

This time they are out to steal Scully's medical bracelet in another team-up episode where Jake decides to betray Terry and claim victory all for himself. As usual, his plan doesn't go the exact way he wanted it to. Peralta accidentally knocks Terry out when he claims victory, just before Terry needs to leave to take his exam.

This is an excellent episode and, despite not being set at Halloween, has everything you want from a Halloween Heist episode.