Investigation Alien
Proceed to WatchOfficial Trailer
Storyline
In this gripping docuseries, legendary reporter George Knapp travels the globe to uncover new evidence about UFOs and investigate their presence on Earth.
Top Billed Cast
George Knapp
Self
Image Gallery
Related Content
Horizon
1964
Life After People: The Series
2009
Cosmos: A Personal Voyage
1980
Welcome to Earth
2021
Mysteries at the Museum
2010
Disney Gallery / Star Wars: The Mandalorian
2020
Super/Natural
2022
MegaStructures
2004
Into the Universe with Stephen Hawking
2010
Cosmos
2014
American Experience
1988
Forensic Files
1996
Superpowered: The DC Story
2023
Top Gear
1978
American Monster
2016
Modern Marvels
1993
Ancient Apocalypse
2022
NOVA
1974
Drain the Oceans
2018