All is not well inside the Los Angeles Police Department. The worst corruption scandal in the force's history has devastated a police department once epitomized by Dragnet's Joe Friday and the clean-cut crew of Adam-12. FRONTLINE correspondent and New Yorker writer Peter J. Boyer unravels the mysteries that swirl around recent reports of police brutality, departmental racism, and corrupt cops who take part in everything from dope deals to bank robberies.