Baretta tracks a distraught father who has killed the doctor he believes responsible for the death of his son, then has gone after the local drug dealers as well.

After a crime lord is arrested, Baretta must jeopardize an undercover policewoman to stop an escalating war of succession between gangland factions.

Believing that Baretta pocketed $500,000 in stolen bonds after stopping a robbery, a mobster takes Billy hostage until the money is turned over.