'Adrian Pimento' - Season 3, Episode 17
When an unstable detective (guest star Jason Mantzoukas) returns to the Nine-Nine after years undercover, Jake doesn't know what to make of him. Meanwhile, Charles' rebellious behavior pits him against the precinct's custodian, and Holt enlists Gina's help in directing a "fun and informational" video starring himself and Rosa.
Air Date: February 23, 2016.
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