[s2e7] — Lockdown

: The 42 civilians trapped in the precinct eventually split into four groups that Jake must manage: The Dirty Dozen : A group of vocal, frustrated individuals. The Normies : The average citizens caught in the mess. The Doink Meisters : A group of younger, rowdy individuals.

: The HAZMAT team eventually confirms the powder is harmless baking powder (or otherwise non-toxic), and the lockdown is lifted. Brooklyn Nine-Nine recap: 'Lockdown' - Entertainment Weekly [S2E7] Lockdown

In , Jake Peralta is left in charge of the precinct on Thanksgiving while Captain Holt and Terry attend a charity event. After Boyle accidentally opens a package containing a mystery powder, the precinct is placed under a HAZMAT quarantine. Survival Guide for a Precinct Lockdown : The 42 civilians trapped in the precinct

: Following Amy’s advice, Jake eventually regains control by dropping the "fun boss" persona and threatening to arrest anyone who challenges his police authority. : The HAZMAT team eventually confirms the powder

: Boyle and a few others perform Beyoncé's "Single Ladies" dance to entertain the precinct, while a lawyer attempts stand-up comedy to lower tensions. The Terry and Holt Subplot

: Jake's mistake was privately telling a lawyer that the powder's toxicity was unknown; the lawyer immediately informed the crowd, inciting a "mutiny".