Avon Barksdale Avon becomes more and more suspicious, he orders Wee-Bey to change phone lines in his apartment and promotes Stinkum to manage a new territory. He gets word that one of Omar's crew members has been "got". Stringer Bell warns D'Angelo that a snitch may be in his camp. The detectives get their affidavit approved for a cloned pager but they are puzzled when the numbers they receive are not regular Baltimore phone numbers.. Herc and Carver catch up with Bodie and attempt to interrogate him.

"A man must have a code." - Bunk
Using information from the wiretap Detectives Greggs, Herc, Carver, and Sydnor catch a runner on his way to the pit with a re-supply. Avon worries about a possible snitch and Stringer confounds the detail's investigative efforts by cautiously instructing his people to stop using payphones. Rawls pressures his detective in the detail for information on their case.