Lewis and Kellerman's investigation of a murder in a housing project puts them at odds with a civilian-patrol group, run by the Black Muslims. Munch is excited because Stan is scheduled to come back June 1st. Russert and Munch catch a case where both the victim and shooter are dead. She with Howard must decide whether to circumvent the so-called "blue wall of silence" among police officers when it is discovered that the officer on the scene didn't react in time. Barnfather stops Lewis and Kellerman's charging of a Muslim, until something is leaked to the newspapers. The "big man" is scheduled to come to the bar, but changes his mind, twice. (thetvdb.com)