This episode of Homicide: Life on the Street is the conclusion of "Charm City," a two-part story introduced on the TV series Law & Order. Baltimore homicide detectives Pembleton (Andre Braugher) and Bayliss (Kyle Secor) have gone to New York to investigate a subway bombing which may be linked to a similar case that occurred in their own city five years earlier. It soon becomes clear that their investigation is being thwarted by a widespread official coverup. Also involved in the case are three Law & Order regulars: detectives Rey Curtis (Benjamin Bratt) and Lennie Briscoe (Jerry Orbach), and ADA Claire Kincaid (Jill Hennessy). The presence of Briscoe ticks off Baltimore detective John Munch (Richard Belzer); it seems that Lennie was once intimate with John's ex-wife. ~ Hal Erickson, Rovi