Toody winds up undercover as part of a mob ring. His intimate knowledge of the area (bank layouts, burglar alarms & patrolmen habits) makes him a better crook than cop.
Tired of being stereotyped as a mama's boy, Muldoon feigns having a hot date at "the hottest club in the Bronx". When his bluff is called by doubting coworkers, he quickly commandeers a puritan family who gets the wrong impression from his weapon!
When Toody takes care of Captain Block's parrot, he decides to teach it to talk. But this backfires when he says he hates Captain Block in front of the bird, and the parrot begins repeating it.
Burkholtz, relegated to the Lost & Found for 15 years due to his extreme laxity is the only choice to sub for Capt. Block on his forced two week vacation. The boys mistake his absence from active duty thinking it's because he was too tough!
Gunther and Lucille's 11-year-old nephew Marvin, in the Big Apple for a Boy Scout event, helps Toody and Muldoon crack the cases that have flummoxed New York's Finest.