Jake and Rosa call for backup from Holt and Pimento after their search for bank robbers turns dangerous. Boyle disapproves of Gina's new boyfriend.

As Rosa and Amy hunt a criminal who escaped their clutches years ago, Jake takes over wedding prep. Holt faces off with his rival for commissioner.

A pudgy pooch, handcuffs and various other disasters delay the crowning of the squad's newest Amazing Human/Genius in the annual Halloween Heist.