Tony Baretta (Robert Blake) maintains a 24-hour surveillance on drug kingpin Durone (John Marley), who is expecting a multi-million-dollar shipment. Durone knows that he's being watched, and Baretta knows that he knows. The relentless undercover cop is also fully aware that Durone is in mourning for his recently deceased wife -- a fact that Baretta hopes will break the aging drug lord's spirit. ~ Hal Erickson, Rovi