Traditionalist veteran cop Lt. Mike Stone is partnered with Inspector Steve Keller, a young, inexperienced college-educated go-getter in the homicide division of the San Francisco Police Department. The two enjoy a bantering relationship while they hunt down the bad guys as Stone teaches Keller the ropes.

Karl Malden was an American actor. He was primarily a character actor, who according to Robert Berkvist, "for more than 60 years brought an intelligent intensity and a homespun authenticity to roles