The BEST episodes of America's Book of Secrets

Every episode of America's Book of Secrets ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of America's Book of Secrets!

Have you ever wondered what goes on behind the scenes of the most legendary monuments and powerful organizations in the United States? America’s Book of Secrets lifts the veil of mystery, giving you unparalleled access to historical narratives and insider information previously hidden from the public. Through in-depth research and exclusive channels, this series delves into a variety of familiar but enigmatic American institutions, from the FBI and the Pentagon to Fort Knox and Area 51. Go beyond the locked doors and security checkpoints of government agencies, famous landmarks and stealthy societies to glimpse the hidden worlds you were never intended to see.

Last Updated: 8/13/2026Network: HistoryStatus: Ended
The Secret Space Program
star
20.00
1 votes

#1 - The Secret Space Program

Season 4 - Episode 1 - Aired 5/11/2021

On December 20, 2019, the newest branch of the armed services was established–Space Force. But nearly two decades earlier in 2002, a man named Gary McKinnon claimed he had discovered evidence that a secret military space program already existed… after hacking top-secret Pentagon and NASA computers. Does this suggest that the U.S. has a much greater presence in space than the public is aware? Could we even have occupied bases on the Moon and Mars?

Hells Angels
star
9.00
53 votes

#2 - Hells Angels

Season 2 - Episode 12 - Aired 6/21/2013

Chronicling the history of the Hells Angels Motorcycle Club.

Serial Killers
star
8.30
80 votes

#3 - Serial Killers

Season 2 - Episode 4 - Aired 4/26/2013

They are secretly stalking America's streets and highways, hiding in plain sight and compelled by one simple motive: the thrill of taking another person's life. Since the 1970s, the United States has produced an estimated 1,400 serial killers--more than double the combined total of the rest of the world. What causes a seemingly normal human being to engage in serial acts of murder? This episode uncovers the psychological, biological and sociological make-up of these dangerous murderers. Why do they kill? How can they be identified and stopped before they strike? Former FBI profiler Clint Van Zandt, criminal psychologists Eric Hickey and Helen Morrison, journalists, scientists and law enforcement experts reveal the secret motives of serial killers like "BTK Killer" Dennis Rader and Jeffrey Dahmer--and explain why Ted Bundy, Donald Harvey "The Angel of Death" an the "Grim Sleeper" Lonnie Franklin Jr. were able to evade capture for years while they amassed a shocking number of victims.

American Nazis
star
8.00
26 votes

#4 - American Nazis

Season 2 - Episode 5 - Aired 5/3/2013

The history of neo-Nazi groups in the United States is examined.

Deadly Cults
star
8.00
26 votes

#5 - Deadly Cults

Season 2 - Episode 6 - Aired 5/10/2013

Uncovering the psychological allure of cults, their leaders and methods of controlling their members.

The Mystery of Bigfoot
star
8.00
26 votes

#6 - The Mystery of Bigfoot

Season 2 - Episode 9 - Aired 5/31/2013

Bigfoot is everywhere you look, but why are so many millions of Americans obsessed with this mysterious man-ape? This episode sheds new light on some of the nation's darkest Sasquatch secrets.

Scientology
star
8.00
26 votes

#7 - Scientology

Season 3 - Episode 1 - Aired 3/29/2014

It is one of the most secret organizations in America. A religion–based on the cosmic revelations of an inspired genius–that boasts more than 100,000 faithful followers throughout the world. We'll reveal the hidden origins, strict doctrine, secret language and celebrity allure of the wealthy and influential institution. Former Scientologists disclose the reasons they were drawn to the church–and why they left. Jenna Miscavige Hill, niece of Scientology's current leader, David Miscavige, describes her difficult experiences inside the organization. Former church executive, Mark Rathbun, demonstrates Scientology's most revered spiritual technology–the "E-Meter." And watchdog Tony Ortega explains the appeal of Scientology that draws in new members. Find out why some consider Scientology a spiritual choice and others consider it a road to ruin.

America's Secret Army
star
8.00
27 votes

#8 - America's Secret Army

Season 3 - Episode 5 - Aired 4/26/2014

They operate in the shadows… Men trained to kill… without leaving a trace. But who are these secret forces? What are their covert methods? And, can they be trusted to protect the interests of the American people? Delve into the clandestine operations of the United States most expertly trained secret weapons. But what exactly are these surreptitious services designed to do–and whom do these stealth-like soldiers ultimately report to? Are the strategies of these covert armies effective in keeping the United States one step ahead of its power hungry enemies? National Security Attorney Mark Zaid reveals details about the prestigious Delta Force unit that have remained a well-kept secret–until now. Former Attorney General John Ashcroft discusses the concept of asymmetrical warfare and how our government employs it today. And author Peter Singer describes the underground war being waged over the internet.

The Secret Service
star
8.00
27 votes

#9 - The Secret Service

Season 3 - Episode 9 - Aired 5/24/2014

They are an elite force of brave men and women who put their lives on the line. Their mission: to guard the most powerful person in the world. But just who are these American heroes? And what secrets are they protecting? This episode goes inside one of the most top-secret law enforcement agencies in the United States. But is there more to the Secret Service than just protecting America's greatest asset? And do recent scandals signify a growing problem within the ranks? Current director of the U.S. Secret Service, Julia Pierson, discusses the history of the agency and the growing threats against the office of the President. Former U.S. Secret Service special agent, Dan Bongino, reveals the grueling agency selection process and the psychology involved in assessing ever-present dangers. And Political Journalist, Marc Ambinder, examines the scandal in Cartagena, Columbia and how it has impacted the culture within the Secret Service.

Fort Knox
star
7.70
80 votes

#10 - Fort Knox

Season 1 - Episode 3 - Aired 2/4/2012

It is one of the most secure structures in the world. It safeguards the vast wealth of the United States... And its name is synonymous with one of the most precious commodities in the history of the world--gold. But behind this building's stone exterior are secrets. This episode unlocks the secret contents, political controversy, and cutting edge security hidden behind the gates of the world's most famous vault. How did the Unites States amass its gold? What is the precious metal really worth? Who's allowed inside the vault? What else is stashed there? Could Fort Knox actually be empty?

The Playboy Mansion
star
7.50
53 votes

#11 - The Playboy Mansion

Season 1 - Episode 5 - Aired 2/18/2012

It is America's most infamous address, a place where fantasies come to life--and anything goes. But behind the security cameras and stonewalls of the Playboy Mansion are secrets. Go inside the stately residence to reveal the secret places, decadent gatherings, and special indulgences usually reserved for beautiful women and Hollywood's elite. How hard is it to get an invitation to the Playboy Mansion? How did Hugh Hefner transform the Mansion into a palace of pleasure? Who is the most notorious guest? What does it take to protect the Mansion for outside intruders? Home to one of the world's most private of public figures, the Playboy Mansion is a sanctum of secrets.

West Point
star
7.50
53 votes

#12 - West Point

Season 1 - Episode 8 - Aired 3/15/2012

It is the most prestigious military academy in the world. A place where cutting-edge technology converges with battle-proven tradition. But inside this launch pad for the Army's elite are secrets. Go inside the 200-year-old university to uncover the complex selection process, secret rituals and traditions and special training that each cadet experiences at the renowned institution of military might. How hard is it to get into West Point? What is the Honor Code, and what happens if a cadet breaks it? Who are the most famous--and infamous academy alumni? What special training goes into making cadets military leaders for the 21st century? West Point is where presidents, world leaders, and the Army's bravest officers are taught, trained and entrusted with some of the nation's most important secrets. Secrets that few outside the academy know... until now.

The Ku Klux Klan
star
7.50
53 votes

#13 - The Ku Klux Klan

Season 2 - Episode 3 - Aired 4/19/2013

They are the original domestic terrorists, hiding underneath white hoods and flowing robes, and taking cover in the rights and freedoms that they are actively seeking to destroy. The Ku Klux Klan--although officially considered by the U.S. Government to be a racist organization--is not an illegal one. And while objectionable to most Americans, its philosophy of racial intolerance is protected as free speech under the First Amendment. But just how large, powerful, and dangerous is the Ku Klux Klan? This episode exposes the nearly 150 years of KKK history and the many attempts to discredit the Klan's demands for segregation and white supremacy. Johnny Lee Clary, once the Imperial Wizard of the White Knights of the Ku Klux Klan in Mississippi, shares inside knowledge of the Klan, including the secret handshakes, secret greetings, and the secret goals of the odern hate group.

Watch Now:Apple TV
The Gold Conspiracy
star
7.00
26 votes

#14 - The Gold Conspiracy

Season 3 - Episode 4 - Aired 4/19/2014

Gold. It is one of the most precious metals in the world. A glittering commodity so rare that people will go to great lengths to obtain it. But who sets the price? And what are the secret methods to control its value?Uncover the clandestine world surrounding the highly prized precious metal. How much gold does the United States really have–and where is it locked away? Is the American government overstating the amount of gold in its reserves to create the mystique of financial superiority? Former U.S. Secretary of Labor Robert Reich discusses the gold standard and the possible manipulation of the commodities markets. Chairman of Euro Pacific Precious Metals Peter Schiff describes how gold could replace credit cards. And author Matthew Hart details how the U.S. is storing gold that belongs to other countries–but may now be missing from the Federal Reserve's vaults.

American Terrorists
star
7.00
26 votes

#15 - American Terrorists

Season 3 - Episode 3 - Aired 4/12/2014

Political dissidents… armed to kill. Sociopathic outsiders… harboring hatred. Religious zealots… plotting mass destruction. And all of them hiding in plain sight. But just who are these killers in our midst and is there any way to stop them? This episode delves into the world of terrorism on American soil and reveals how authorities are working to stop these radical groups. Deputy Chief of LAPD Counter Terrorism Michael Downing reveals terrorists recruiting tactics in American prisons. Former Sergeant of the Massachusetts State Police Sean Murphy recounts the manhunt for the Boston Marathon Bombers. And journalist Laura Sullivan describes how today's new terrorists may be as close as your next-door neighbor. With an estimated tens of thousands of terrorists operating in the United States, can Americans ever reclaim the peace and security that was once taken for granted? Is there any chance of winning the so-called "war on terror?"

Watch Now:Apple TV
Big Brother
star
7.00
26 votes

#16 - Big Brother

Season 3 - Episode 2 - Aired 4/5/2014

This episode uncovers the secret surveillance methods the government and big business use to watch, monitor and record our every move. Government whistleblowers, Thomas Drake and Jesselyn Radack, reveal how the NSA decided to aggressively monitor Americans' correspondence after 9/11. Documentarian Cullen Hoback explains how the government has partnered with Silicon Valley high-tech companies like Facebook and Yahoo to gather data on every American citizen. And former computer hacker Sammy Kamkar explains how someone could watch you from inside your own home. Buzzing drones overhead. Emails monitored and stored. Cell phone records tracked and analyzed. In today's digital age, is the concept of privacy now extinct? There are those who believe Big Brother is already here–and that the secret monitoring of American citizens has only just begun.

Watch Now:Apple TV
Lost Treasures
star
7.00
27 votes

#17 - Lost Treasures

Season 2 - Episode 11 - Aired 6/14/2013

American treasure hunters are convinced that there are missing fortunes scattered all around the country just waiting to be found.

Presidential Assassins
star
7.00
27 votes

#18 - Presidential Assassins

Season 2 - Episode 10 - Aired 6/7/2013

Over the last century there have been four successful presidential assassinations and a multitude of failed attempts. But do we know the real story behind these assassination plots?

Presidential Cover-Ups
star
7.00
26 votes

#19 - Presidential Cover-Ups

Season 2 - Episode 7 - Aired 5/17/2013

How much do we really know about what goes on behind the doors of the Oval Office?

The Mafia
star
7.00
27 votes

#20 - The Mafia

Season 2 - Episode 2 - Aired 4/12/2013

For decades, the criminal organization known as "The Mafia" has stained the fabric of American society. But what are the secrets behind the Mob's sinister success? According to the FBI, the American Mafia still has approximately 3,000 active members, and just like the iconic mobsters of the past, the modern Mafia's ill-gotten gains still come at a price: blood, bullets, and a massive body count. Uncover the secret world of organized crime and the violent tactics used by the Cosa Nostra to gain money and power. How did the Mafia become so powerful? How is it possible that with hundreds of gang related killings in Chicago in the 1920s, not one gangster--including the most violent of all, Al Capone--was ever convicted of murder? Why was the Director of the FBI, J. Edgar Hoover, reluctant to go after the Mafia in the 1930s and 40s? Could the Mafia's influence extend beyond local police and politicians? And what new illegal activities is the Mafia involved in today?

Watch Now:Apple TV
The Ancient Astronaut Cover-Up
star
7.00
53 votes

#21 - The Ancient Astronaut Cover-Up

Season 2 - Episode 1 - Aired 4/5/2013

The notion of a universe inhabited by alien creatures can be found just about everywhere in American popular culture. But could mankind really have been visited by alien beings from other worlds? And might the truth have been kept secret for centuries? Ancient Astronaut theorists Erich von Daniken and Giorgio Tsoukalos, along with Apollo 14 astronaut Edgar Mitchell, journalists, scientists and government officials explore the mainstream resistance to the idea that aliens have been visiting the Earth for centuries. Has the United States government conspired with other nations to hide the facts about mankind's extraterrestrial past? Could there really be a global cover-up of ancient alien activity? One that shields the public from a profound knowledge that, if revealed, could shatter the very fabric of our civilization?

Watch Now:Apple TV
Black Ops
star
7.00
53 votes

#22 - Black Ops

Season 1 - Episode 9 - Aired 3/24/2012

They are top-secret missions manned by specially trained intelligence and military elite. Covert operations using unconventional tactics outside the standard protocol. This episode uncovers the clandestine activities and state-of-the-art training of the U.S. Special Forces that undertake the most dangerous surveillance, reconnaissance, and intelligence collecting missions on Earth. What makes a mission a Black Operation or Black Op? Who approves a mission--and how much does the President know? What secret training prepares a soldier for these life and death assignments? How is the CIA involved in Black Ops? From cloak and dagger spy games to hand-to-hand combat, Black Ops are shrouded in secrecy...until now.

The FBI
star
7.00
80 votes

#23 - The FBI

Season 1 - Episode 7 - Aired 3/10/2012

It is America's most powerful police force--made up of an elite team of Special Agents secretly patrolling the nation--and the world. While its patriotic mission is public knowledge, the FBI's tactics are classified. We'll go undercover to reveal the secret training, special operations and state-of-the-art tools used in today's 21st century crime fighting. How far can the FBI go to prevent crime and protect Americans? What are ghost agents, and how are they used for undercover surveillance? Who is the most notorious double agent? How has the internet changed the way the FBI works? While its global reach and sophisticated technology helps keep America safe, the FBI's greatest strength is its ability to keep its crime fighting tactics secret...until now.

The Drug Wars
star
7.00
26 votes

#24 - The Drug Wars

Season 2 - Episode 8 - Aired 5/24/2013

Uncovering the conspiracies behind America's 40-year drug campaign and why marijuana is classified as equally dangerous as heroin.

The White House
star
6.70
80 votes

#25 - The White House

Season 1 - Episode 1 - Aired 1/21/2012

An inside look at the secret protocols, elite security and hidden history of the world's most public of private residences. What is the most secret room in the White House and what makes it so powerful? What secret visitors have been to the White House--invited or not? What kind of background checks are needed to work at the White House? What security measures go into effect if the White House is under attack? For over 200 years, the White House has functioned as a Presidential residence, Executive Office and national command center. But more guarded than the White House itself--are its secrets. Secrets that have remained untold...until now.

Watch Now:Apple TV