The Drug Wars: Documentary uncovering the conspiracies behind America's 40-year drugs campaign. Could laundered drugs money be keeping the fragile global economy afloat? (S2, ep 8)
West Point: Head inside the academy at West Point and discover the mysteries and traditions surrounding the secretive New York launch pad for presidents and army elites. (S2, ep 8)
Billionaire Agenda: Investigation into the growing power and wealth of the US's super rich, including how billionaires' 'dark money' is being used to influence politics. (S3, ep 7)
Presidential Cover-Ups: Go behind the headlines and uncover the real stories behind the greatest White House scandals of recent times. (S2, ep 7)
The FBI: An inside look at America's most powerful police force. Formed of Special Agents, its mission is public knowledge but its tactics are top-secret. (S1, ep 7)
...of Secrets. Secret Prisons: Documentary exploring the biggest scandals and conspiracies to rock the US prison system, including Pennsylvania's 2008 'kids for cash' scandal. (S3, ep 6)
Deadly Cults: A look at the strange allure of cults, their leaders and how they control their members. A Jonestown survivor remembers the last days of the Peoples Temple. (S2, ep 6)
Presidential Transports: A look behind the bulletproof glass and armoured plating of the president's fleet of vehicles, from Air Force One to the limo known as The Beast. (S1, ep 6)
America's Secret Armies: A look inside the US's secret services. These forces operate in the shadows, but what do they do? And do they have the US's best interests at heart? (S3, ep 5)
The Mafia: According to the FBI, the American Mafia still has approximately 3,000 active members. Could the Mafia's influence extend beyond local police and politicians? (S2, ep 5)