When Chano and Wentworth are assigned to crowd control at a block party in Manhattan South's neighborhood, Wentworth makes a collar of a would be assassin. She then gets furious when the detectives from Manhattan South takes credit for it. It's then up to Barney and Harris to smooth things over when Lt. Scanlon arrives at the twelft precinct and makes things worse. Fish and Yemana bring in a young man at a laundromat for indicent exposure while doing his laundry.