Soon after, Popeye learns from an informant that a major shipment of heroin will arrive in the New York area. The detectives convince their supervisor, Walt Simonson (Eddie Egan), to wiretap the Bocas' phones, and they use several ruses to obtain additional information. Popeye and Cloudy are joined in the investigation by a federal agent named Mulderig (Bill Hickman). Popeye and Mulderig dislike each other based on having worked together in the past, with Mulderig holding Popeye responsible for the death of a policeman.