The detail continues to look for the source of the union's money and begin to monitor container movements. Detective Greggs tracks down a lead on the murdered girls. Stringer, concerned over D'Angelo's distancing from the organization, goes behind Avon's back to deal with the problem once and for all. Nick requests help from the Greeks to solve Ziggy's problems. As Sobotka outlines his plans for the docks, several of his union colleagues express suspicion at the source of his income. Omar emerges from hiding to testify against Bird.