Cagney & Lacey (1982)

S2E20 The Gang's All Here

In honor of Petri's new role as a first-grade detective, the team decides to throw a celebration. Unfortunately, their festivities take a turn for the worse when they get robbed, losing their guns and badges in the process. Now, they must find a way to redeem themselves. LaGuardia, feeling particularly frustrated by the incident, threatens to resign in response to the embarrassment.