Investigation into two decorated NYC cops who are on the payroll of the mafia, taking bribes in exchange for confidential information and carrying out eight gangland-style murders.

The FBI investigates a jewelry theft ring with ties to the Chicago mob. But they soon find that the mastermind behind the operation is a decorated former Chicago police chief.

In 1994, dozens of NYPD officers in New York City’s 30th Precinct in Harlem are convicted of perjury, civil rights infractions, theft, tax evasion and dealing narcotics.

A bad cop-turned-good in North Carolina helps uncover a pattern of crimes committed by officers in the sheriff’s department, which brings down 22 law enforcement officials.