Father Frank Dowling is a Catholic priest who continually stumbles over murders, abductions, and other high crimes in his hometown, Chicago, Illinois. He is assisted by Sister Stephanie "Steve" Oskowski, who does much of the legwork for Frank. Sister Steve is a streetwise nun who grew up in a rough housing project nearby, so she can hotwire a car and handle firearms with ease. She knows the language of the streets and converses in it fluently. Stars Tom Bosley, Tracy Nelson, James Stephens and Mary Wickes.