Cagney & Lacey S02 E06 Internal Affairs

"Two women cops working twice as hard for half the glory, twice the excitement!"

The 14th precinct has an informer in its midst. The undercover agents working on a truck hijacking are getting exposed. IAD ""asks"" C&L to investigate, since they're ""outsiders."" When Cagney refuses, the IAD lieutenant smirkily tells her that Charlie was on the take when he was a cop. All they turn up is that LaGuardia has a girlfriend and Samuels is seeing aa psychiatrist because of the effect of his divorce.