In order to distract Terry from the stress of his upcoming lieutenant's exam, Jake, Holt and the squad decide to hold the annual Halloween Heist on a new date, Cinco de Mayo.
For this year's Halloween challenge, Jake and Holt divide the precinct into teams as they try to see who can steal a crown held under lock and key in the interrogation room.
After a surprising turn of events in the Nine-Nine's attempt to track down Adrian Pimento's hitman, the precinct drops everything when they suspect Holt is in danger.