

Investigates the mysteries behind declassified top secret government files with stunning details about the world's most credible UFO sightings and alien encounters. The series pieces together the data on these incidents, and tries to answer the question: what really happened?

Season 1
No episodes found for this season.
Featuring
Brad Cartner
Narrator
Keep watching
8.51992·8.5
Sightings
1992 · Series
6.92000·6.9
Scariest Places on Earth
2000 · Series
7.32021·7.3
Top Secret UFO Projects Declassified
2021 · Series
6.32014·6.3
Ghost Asylum
2014 · Series
7.12010·7.1
Ancient Aliens
2010 · Series
5.32022·5.3
Ummo: La España alienígena
2022 · Series

2025
Ufo - I casi italiani
2025 · Series
8.01996·8.0
Ghosthunters
1996 · Series
8.52012·8.5
The uneXplained
2012 · Series
7.02024·7.0
UFO-mysteriet med Felix Herngren
2024 · Series
5.02016·5.0
L'enquêteur du paranormal
2016 · Series
10.01991·10.0
Les portes du futur
1991 · Series
5.52024·5.5
Alien Encounters: Fact or Fiction
2024 · Series
7.02013·7.0
My Haunted House
2013 · Series
9.02003·9.0
Weird Travels
2003 · Series
7.22021·7.2
UFO
2021 · Series
Picked for you
7.12010·7.1
Ancient Aliens
2010 · Series
6.82023·6.8
Encounters
2023 · Series
7.32015·7.3
Hangar 1: The UFO Files
2015 · Series
7.32021·7.3
Top Secret UFO Projects Declassified
2021 · Series
7.72020·7.7
History's Greatest Mysteries
2020 · Series
6.72019·6.7
The UnXplained
2019 · Series
6.62024·6.6
Files of the Unexplained
2024 · Series
7.22012·7.2
America's Book of Secrets
2012 · Series
7.52011·7.5
Paranormal Witness
2011 · Series
8.11977·8.1
In Search of...
1977 · Series
7.52026·7.5
Trust Me: The False Prophet
2026 · Series
6.92018·6.9
Haunted
2018 · Series
6.62024·6.6
The Manhattan Alien Abduction
2024 · Series
7.51964·7.5
Horizon
1964 · Series
7.82022·7.8
Conversations with a Killer: The Jeffrey Dahmer Tapes
2022 · Series
7.12018·7.1
Drain the Oceans
2018 · Series
6.42000·6.4
Secrets of the Dead
2000 · Series
8.82010·8.8
Mysteries at the Museum
2010 · Series
7.42018·7.4
Explained
2018 · Series
6.62019·6.6
The World According to Jeff Goldblum
2019 · Series