S5, E8: The funeral of a major drug dealer brings gangsters of all sorts out of the woodwork. But even with chaos in the streets, our cops learn that sometimes the greatest threats come from within. Investigating the drug related murder of Sgt. Hill's son, Lydia and Ruben discover police corruption in the process and clash over how to handle it. Ben suspects that Sammy did not destroy the tape, and decides to take matters into his own hands with tragic consequences. John sinks further into his loneliness.