Avsnitt 5

The mob sets up an "insurance" scam that threatens several businesses and residents. Frank and Nordberg go to investigate. After a dance instructor is beaten up, they set up their own shop - a key-making and locksmith store - and go undercover. When the mob stops by to offer them "insurance", Frank dismisses their threats and the mob strikes their store . Frank ends up having the key to stopping the crime wave, largely because of the key-making and locksmith shop he and Nordberg set up.