Washington, D.C., was once 'Crack City' and the murder capital of the U.S. But an increased police presence following Sept. 11 made drugs scarce. In the neighborhoods of southeast D.C., one drug remained ' PCP. And it's causing havoc. NGC goes inside the chaotic world of PCP where users think they're invincible and can be driven to insane acts of depravity. Visit the emergency room unit where doctors treat up to 80 psychotic patients high on PCP each month.