The WORST episodes of History's Greatest Mysteries
Every episode of History's Greatest Mysteries ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of History's Greatest Mysteries!
Investigate a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Each program within the franchise will showcase fresh, new evidence and perspectives including never-before-released documents to the general public, personal diaries and DNA evidence to unearth brand-new information about these infamous and enigmatic chapters in history.
#1 - The Murder of Sam Giancana
Season 7 - Episode 6 - Aired 3/9/2026
The notorious mafia kingpin, Sam Giancana, is shot execution style in his own home. The larger-than-life mobster had many enemies, from inside the mafia to the CIA. Was his death a crime of passion? The result of unpaid debts?
#2 - Lost Places of the Old Testament
Season 6 - Episode 20 - Aired 8/18/2025
The Tower of Babel, Sodom and Gomorrah, Mount Sinai are some of the greatest Old Testament stories ever told. Yet these iconic places have seemingly vanished from the map. If found, these venerated sites could reveal much about humanity's ancient past. And many scholars believe the Book of Genesis is filled with clues...if you know where to look. Where are the Old Testament's legendary lost places--and what might they reveal?
#3 - Roswell: The First Witness – The Writer
Season 1 - Episode 7 - Aired 12/26/2020
Investigator Ben Smith travels to Jesse Marcel's hometown on Louisiana's Gulf Coast to speak with family members who reveal information that supports Marcel's story of a government coverup. Smith speaks with Leslie Kean, the investigative journalist who broke The New York Times story about a clandestine U.S. government program to investigate UFOs. Smith also digs deeper into the mystery of the journal as he studies writing samples to determine if the journal might have been written by one of Marcel's fellow officers who later claimed he was ordered to oversee the military's coverup. Back in Marcel's hometown, Smith meets with a man who swears Marcel confided in him about alien bodies-- something Marcel had never mentioned to the press or family. As the results come back from soil, metal and forensic handwriting analysis, Smith shares his findings with the Marcel grandchildren.
#4 - The Ark of the Covenant
Season 4 - Episode 6 - Aired 3/6/2023
One of the holiest and most powerful relics from the Bible has been missing for over 2,000 years. While some believe the Ark of the Covenant was destroyed, many people think it's still out there. Could new clues finally tell us what happened to the Ark, and lead us to where it can be found?
#5 - The Hunt for El Chapo: Case Closed
Season 7 - Episode 10 - Aired 4/13/2026
El Chapo is an untouchable drug lord who sat atop a criminal empire and became the most wanted man in the world; for fifteen years, the U.S. and Mexico tries to hunt down El Chapo, but he is always a few steps ahead; how did investigators finally bring El Chapo to justice?
#6 - Expedition Bermuda Triangle
Season 2 - Episode 1 - Aired 9/7/2021
On December 5, 1945, five American WW2 torpedo bombers took off from Florida with all men and planes disappearing without a trace. Hours later, the search plane dispatched to find them, also vanished, believed to be lost to the infamous Bermuda Triangle. The number of men tragically lost that day totaled 27 and 75 years later, it remains an unsolved mystery. No ship in history has searched the extreme depths of the Bermuda Triangle, thought to have claimed over 1,000 ships and planes, until now. The late Paul Allen's ship, R/V Petrel, the most advanced search vessel of its kind, will deploy a wide array of cutting edge technology including deep-diving submersibles to investigate three miles down, in an effort, to find the lost squadron and solve the mystery that began the legend of the Bermuda Triangle.
Watch Now:Apple TV
#7 - The Plot to Kill Lincoln
Season 7 - Episode 9 - Aired 4/6/2026
A shot rings out from the balcony of the Ford's Theater in Washington, D.C., and America's 16th president—Abraham Lincoln—has been killed. It has been long thought that this was the work of one man… but some believe the assassination was part of a larger plot months in the making. Who was behind the plan to assassinate President Lincoln?
#8 - The Search for Rommel's Gold
Season 7 - Episode 15 - Aired 5/18/2026
One of Germany’s top military minds during WWII, General Erwin Rommel “The Desert Fox,” tears through North Africa. As he captures territory, and imprisons local Jews in camps, he steals their gold and valuables in the name of the Führer.
#9 - The Phoenix Lights Phenomenon
Season 4 - Episode 5 - Aired 2/27/2023
In 1997, thousands of people across Phoenix witness a series of strange lights unlike anything they've ever seen. Could this be one of the largest-scale UFO sightings in history, or is there another explanation for this mysterious phenomenon?
#10 - The Amityville Horror
Season 3 - Episode 5 - Aired 3/21/2022
After a series of dark and ominous events, an unassuming family home on Long Island becomes the most notorious house in America. 50 years later, it's spawned a title wave of books, documentaries, and films; but do haunted houses really exist? Who--or what--is really responsible for the Amityville horror?
#11 - Secrets of the Copper Scroll
Season 6 - Episode 14 - Aired 5/19/2025
This is the most mysterious of the Dead Sea Scrolls. An ancient treasure map, recorded on a rare Copper Scroll, could lead to billions of dollars of buried treasure in gold, in silver, in jewels, hidden away thousands of years ago from Roman invaders. The most mysterious of the Dead Sea Scrolls; The clues listed on the Copper Scroll could lead to this vast fortune. Where is the secret treasure of the Copper Scroll?
#12 - Hunting Hitler’s U-Boats
Season 2 - Episode 2 - Aired 9/14/2021
An investigation into the unshakable claims of Roger Miklos, one of America's most eccentric, controversial, and accomplished treasure hunters. Decades before his death in 2018, Roger believed he discovered a modified Nazi U-boat loaded with a fortune in artwork, antiquities, and gold off the coast of Turks and Caicos. Before he passed, Roger gave an exclusive interview that revealed clues about the possible position of the U-boat and left behind a trove of documents, maps, and photographs. Now, armed with this evidence, celebrated diver Mike Fletcher and his team will take to the high seas in search of the special U-boat.
Watch Now:Apple TV
#13 - Who is D.B. Cooper?
Season 4 - Episode 14 - Aired 5/15/2023
It's the only unsolved air piracy case in history; in 1971, a man hijacks a Northwest Orient Airlines flight, demanding four parachutes and $200,000; he jumps out of the plane with the money and is never seen again.
#14 - The Lufthansa Heist
Season 7 - Episode 13 - Aired 5/4/2026
On December 11, 1978, a gang of thieves lifted around $5 million in cash and $800,000 in jewelry from a luxury airline hangar at New York's JFK Airport, marking the largest heist in U.S. history at that time. The authorities interview employees and find a connection to local mafia bosses… but every time they close in on a potential suspect, that suspect ends up dead. Almost 50 years later, they still haven't found all the culprits-or the goods. So, who orchestrated the Lufthansa heist?
#15 - The Hunt for the Kraken
Season 7 - Episode 5 - Aired 3/2/2026
It’s one of the most legendary monsters said to be lurking in the vast open seas. With stories going back hundreds of years, this elusive creature has terrorized sailors and baffled scientists.
#17 - Endurance: The Hunt for Shackleton's Ice Ship
Season 1 - Episode 3 - Aired 11/28/2020
In 1914, Sir Ernest Shackleton led an expedition to Antarctica but soon after arrival, Shackleton's ship--The Endurance--was destroyed by shifting glaciers, and he was tasked with leading his 27 men across the tundra, on an epic struggle for survival. Shackleton's battle against the odds and his unfailing commitment to bring all his men out alive turned him into a legend. The ship's final resting ground remains one of the greatest polar mysteries. Led by maritime archeologist and shipwreck expert, Mensun Bound, follow a new ground-breaking expedition heading back into the frozen seas to hunt down Shackleton's lost ship.
#18 - Jack the Ripper
Season 3 - Episode 10 - Aired 5/2/2022
A spree of gruesome murders shocks Victorian England--and the world. The homicidal maniac responsible remains a mystery. Can history's most notorious serial killer ever be identified? Who is Jack the Ripper?
#19 - Blackbeard's Lost Treasure
Season 4 - Episode 8 - Aired 3/20/2023
One of history's most notorious pirates, Blackbeard, is said to have had a treasure worth millions of dollars. After centuries of searching, the legendary hoard remains missing. As new evidence is unearthed, the mystery endures: what became of Blackbeard's lost treasure?
Watch Now:Apple TV
#20 - The Escape of John Wilkes Booth
Season 1 - Episode 4 - Aired 12/5/2020
He was the actor whose most famous role was assassinating a president. But was John Wilkes Booth also an escape artist? Did Booth evade justice and live for decades after killing Abraham Lincoln? For the first time, Booth family members share family lore, and what they believe is evidence of the assassin's escape, passed down through generations.
#22 - The Legend of the Werewolf
Season 7 - Episode 3 - Aired 2/9/2026
It's one of humanity's oldest nightmares-at the full moon, werewolves that once were men hunt human prey and then feast on their flesh. Stories of this terrifying transformation persist to this day; do real facts lie behind the enduring stories of werewolves?
#23 - The Search for Noah's Ark
Season 4 - Episode 13 - Aired 5/8/2023
It's one of the most famous stories from the Bible; for thousands of years the tale of Noah's Ark is shared, but little is known about what happened to the ark.
#24 - The Disappearance of Jimmy Hoffa
Season 3 - Episode 2 - Aired 2/28/2022
A powerful union activist disappears from a Detroit suburb; 45 years later, it remains one of the most notorious missing person cases of all time; the mystery of Jimmy Hoffa's disappearance features more twists and turns than a Hollywood movie.
#25 - The Voynich Manuscript
Season 3 - Episode 9 - Aired 4/25/2022
It might be the world's most mysterious book: a medieval manuscript filled with unidentifiable drawings, written in a secret language so complex that even the world's best code breakers can't crack it. It's obsessed everyone from scholars to conspiracy theorists. What is the Voynich Manuscript? And who wrote it?