After years of anti-immigrant backlash, anger seethes in the nation's Latino communities. The crowded streets bristle with restless youth, idled by a deep recession. When undercover detectives in San Antonio accidentally kill a young Latina bystander during a botched drug bust, riots erupt across the Southwest. As the inner-city violence escalates, Anglo vigilantes strike back with shooting rampages. Exploiting the turmoil, a congressional demagogue succeeds in passing legislation that transforms the nation's Hispanic enclaves into walled-off Quarantine Zones.