Baretta - Season 1 (1975)

Thugs hijack a drug shipment in Mexico, killing a guard and loading it onto trucks en route to Los Angeles. Baretta realizes that the drugs are destined for an old mobster and puts him under constant -- and obvious -- surveillance. It's so obvious that the mobster gets to know Baretta and even to create a semblance of friendship with him. By the end of Act Four, the mobster has served up his nephew (who was the driving force behind the robbery) to Baretta for arrest. Baretta is grateful, but in the tag he and the mobster sit on the mobster's front porch -- jointly ...

Baretta's current lady is a messed-up photographer. After a bust of counterfeit money being sold for a half million dollars, the real money is nowhere to be found--except by the lady photog. Baretta is suspected of the grab, pursued by the criminals, and hassled by his bosses. When his girl suddenly packs up to go, Baretta finally gets it, but he is almost too late!

Going undercover as a flamboyant hippie named Ragtime Billy Beaches, Baretta flies to Los Angeles to investigate a beautiful woman, married to a rich doctor, who was murdered.

The younger brother of a young hoodlum, who was shot and killed by Baretta, seeks revenge.

Baretta's partner (Michael Parks) accepts a bribe during a setup by the police commission, and because of interference by a careless cop who yearns to be a novelist, Baretta could go down with his friend.

After a cop is murdered at a luxurious but crime-infested mansion, Baretta is assigned as an undercover replacement.

Baretta's childlike old neighborhood friend Willy "Burt Young" might be behind a string of robberies.

The title's "Secret" could involve who killed a mob boss (blamed on a lowly hit man), kept by Terry Lake, a mysterious woman with mob connections played by Margot Kidder, who Baretta goes undercover to investigate.

A wealthy District Attorney (Michael Murphy) calls his childhood friend Baretta to investigate his brother's missing wife. But the brother/husband doesn't seem very concerned.