Undercover cop Tony Baretta (Robert Blake) investigates when a blind hot dog vendor is murdered. The only witness is a hungry little girl named Molly (Elizabeth Cheshire), who got a good look at one of the killers. Unfortunately, both of the perpetrators got a very good look at Molly, meaning that her life won't be worth a bottle of mustard unless Baretta comes to the rescue. ~ Hal Erickson, Rovi