What Simon and his collaborators achieve is breathtaking -- creating a dozen parallel plotlines that slowly converge as the season progresses, all rooted in a totally organic world. There is drug kingpin Marlo (Jamie Hector), consolidating his hold on the streets; Det. Lester Freamon (Clarke Peters), who continues to follow the drug money despite his higher-ups' reluctance to stir the pot in an election year; and former cop Howard Colvin (the magnificent Robert Wisdom), who, after unilaterally decriminalizing drugs in season three, is recruited to research at-risk teens, intersecting with the aforementioned...