This is a 40+ year old police procedural. Action focuses on multiple detectives in the Robbery-Homicide Department of L.A. Interesting - strange - case scenarios, including a serial killer, murder-suicide, burglary gone bad, etc. From a procedural standpoint, there should have been some mirandizing going on. But the action things really move along without a lot of fluff that's found in more modern police procedurals.
It is spring and again there is an endless caseload for Lt. Mendoza. There is Dapper Dan the rapist, a stickup artist who has found a fool proof weapon, a ferocious Doberman, a gruesome double homicide/suicide with a weird twist, and a senator's 'natural' death that suddenly doesn't appear so natural keep Mendoza on the job long hours.
