The UnXplained
The show will explore the facts behind the world's most fascinating, strange and inexplicable mysteries.
- 2019-2026
- 8 seasons
- History Channel
- Documentary
- TV-14
The show will explore the facts behind the world's most fascinating, strange and inexplicable mysteries.
Season 8 Episode Guide
18 Episodes 2026
Episode 1
Impossible Ancient Structures
Fri, Jan 16, 2026 42 mins
All over the world stand ancient structures so massive, precise, and baffling that they seem impossible for not just their time, but ours as well. From colossal walls and giant stone tombs to temples carved from solid rock, how did ancient civilizations achieve feats of engineering that still defy modern understanding?
Episode 2
Nightmares and Dreams
Fri, Jan 23, 2026 42 mins
Dreams have inspired humanity for thousands of years, and in all this time, we have yet to answer one fundamental question: What is the purpose of dreams?
Episode 3
Unnatural Disasters
Fri, Jan 30, 2026 42 mins
Throughout history, catastrophic disasters have reshaped civilizations - yet some events defy all scientific expectations. Are some of Earth's deadliest catastrophes truly natural - or - unnatural?
Episode 4
Mysteries of Africa
Fri, Feb 13, 2026 42 mins
Africa is the birthplace of humanity and remains one of the most mysterious continents on Earth. What secrets lie hidden throughout Africa's vast and unexplored ancient landscape?
Episode 5
Mind Over Matter
Fri, Feb 20, 2026 42 mins
The human mind is home to all our thoughts, hopes, dreams, and memories. But are there people who are "wired" differently than most of us? Can unique circumstances permit some to tap into extra-sensory abilities that defy nature?
Episode 6
Mighty Kingdoms Unearthed
Fri, Feb 27, 2026 42 mins
Throughout civilization there are many kingdoms and mighty empires that have risen, only to one day fall. What can we discover from clues left behind by these once great empires?
Episode 7
Dangerous Places
Fri, May 29, 2026 42 mins
Every year, people risk their lives to enter places the world has marked off-limits. What is it about the world's most dangerous places that makes them impossible to resist?
Episode 8
Satan's Army
Fri, Jun 5, 2026 42 mins
Throughout history, terrifying tales describe supernatural forces threatening humanity—from demonic possessions and haunted houses to ghostly soldiers and age-old deals with the Devil.
Episode 9
Top Secret Projects
Fri, Jun 12, 2026 42 mins
Governments have historically conducted classified projects beyond imagination—from experimental aircraft and staged deceptions to covert experiments violating ethical standards.
Episode 10
Mystery of the Dinosaurs
Fri, Jun 26, 2026 42 mins
Dinosaurs have fascinated scientists for nearly two centuries, and in all that time, we have yet to answer even the most basic questions about how these animals lived, how they died, and what became of them.
Episode 11
The Lost World of the Aztecs
Fri, Jul 10, 2026
Five centuries after the fall of the Aztec Empire, new discoveries are revealing that this lost civilization may have been far more sophisticated—and far stranger—than history has long suggested.
Episode 12
Objects of Power
Fri, Jul 17, 2026
Throughout history, certain objects have been believed to possess extraordinary powers—healing the sick, legitimizing rulers, and influencing the destiny of entire nations.
Episode 13
Unnerving Nature
Fri, Jul 24, 2026
Around the world are places where nature behaves mysteriously. Forests where travelers get lost, deserts with communication issues, caves with dangerous air, and mountains that remain unclimbed due to extreme conditions.
Episode 14
Deadly Ancient Curses
Fri, Jul 31, 2026
Throughout history, people have believed that ancient curses can bring misfortune, madness, and death to those who disturb them.
Episode 15
Alien Close Encounters
Fri, Aug 7, 2026
An exploration of strange and inexplicable mysteries. Contributions from scientists, historians and witnesses as they seek to shed light on how the impossible can happen.
Episode 16
Secrets of the Pyramids
Fri, Aug 14, 2026
Why did so many ancient people, separated by oceans and centuries, return to the same monumental shape? Were pyramids simply the most practical way to build toward the sky--or could they reveal a deeper pattern of sacred knowledge?
Episode 17
Buried Mysteries
Fri, Aug 21, 2026
Across the deserts of North Africa and the Near East entire armies, cities, and cultures have vanished beneath shifting sands. Could the desert still be hiding lost chapters from the dawn of civilization?
Episode 18
Human Anomalies
Fri, Aug 28, 2026
Across the world, rare medical disorders and extraordinary capabilities reveal how little we truly understand about the human body. Are these evidence that the human body is capable of far stranger things than science has fully explained?