The BEST episodes of America's Book of Secrets season 4

Every episode of America's Book of Secrets season 4, ranked from best to worst by thousands of votes from fans of the show. The best episodes of America's Book of Secrets season 4!

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: 2/22/2024Network: HistoryStatus: Ended
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The Secret Space Program
star
7.96
25 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?

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Deadly Pandemics
star
7.47
17 votes

#2 - Deadly Pandemics

Season 4 - Episode 10 - Aired 7/20/2021

In 2020, COVID 19 effectively shut down the entire world–and in the process, elevated pandemics to the most important issue across the globe. How do they start? Is it possible to contain them? And could COVID 19 be merely the precursor to something much worse?

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Alien Disclosure
star
7.46
13 votes

#3 - Alien Disclosure

Season 4 - Episode 9 - Aired 7/13/2021

Are governments around the world preparing mankind for the most startling event in human history–the official disclosure of extraterrestrial contact? Or even an extraterrestrial presence on Earth right now? And if so, why is this happening now, what form might the announcement take, and what might happen in its aftermath?

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FBI vs MLK
star
7.38
16 votes

#4 - FBI vs MLK

Season 4 - Episode 4 - Aired 6/8/2021

In 1962, Martin Luther King Jr. criticised Hoover’s FBI for refusing to prosecute white supremacists who had burnt down black churches in Albany, Georgia; Hoover took King’s criticisms as a personal insult and he ordered the FBI to investigate King.

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Inside Area 51
star
7.32
25 votes

#5 - Inside Area 51

Season 4 - Episode 6 - Aired 6/22/2021

In 2013–after decades of secrecy, denials, and cover-ups–the CIA declassified documents that acknowledged the existence of a top-secret military research facility known as Area 51. But despite this disclosure, six years later in 2019, millions responded to an internet post advocating to storm the gates. Why does this Top-Secret location continue to draw so much attention–and suspicion? What really goes on within its heavily secured walls? Should we be reassured by its existence? Or fearful?

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Doomsday Scenarios
star
7.30
20 votes

#6 - Doomsday Scenarios

Season 4 - Episode 7 - Aired 6/29/2021

A look at what plans the United States government has in place to deal with a major attack or catastrophic event, from the designated survivor to the Mount Weather Emergency Operations Centre and FEMA catastrophe protocols.

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Protecting the President
star
7.29
21 votes

#7 - Protecting the President

Season 4 - Episode 2 - Aired 5/18/2021

The United States has experienced four presidential assassinations, and two more assassination attempts nearly succeeded. But how many more occur that never reach the public? And how far do we go to protect the commander in chief?

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Mind Control
star
7.28
18 votes

#8 - Mind Control

Season 4 - Episode 8 - Aired 7/6/2021

From Masonic symbols to concealed bases and hidden tunnels that exist right under one’s feet, many of America’s best kept secrets hide in plain sight.

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The Hunt for Hitler's Relics
star
7.09
22 votes

#9 - The Hunt for Hitler's Relics

Season 4 - Episode 5 - Aired 6/15/2021

Adolph Hitler was deeply into the occult and even established a Nazi organization called the Ahnenerbe, with a secret mission to track down and confiscate holy relics–a fact that inspired the blockbuster film, Raiders of the Lost Ark. It was rumored that he sought not only the Ark of the Covenant, but the Holy Grail, the omphalos from the Oracle of Delphi, the entrance to the mythical land of Shambhala, and an object known as “The Spear of Destiny”–the spear that was supposedly used by a Roman soldier to pierce Christ’s side during the crucifixion. Did Hitler actually come to possess some of these ancient relics?

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The Freemason Factor
star
6.96
26 votes

#10 - The Freemason Factor

Season 4 - Episode 3 - Aired 5/25/2021

The Freemasons are rumored to be able to trace their roots back to the medieval warrior monks known as the Knights Templar, and it is an established fact that they were highly influential in the founding of the United States.

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