Encounters that threatened America | UFOs: Top Secret Alien Files

For everyday heroes in law enforcement and the military, their mission to serve and protect is put to the ultimate test when they come face to face with dangerous UFOs. See more in this special, "UFOs: Top Secret Alien Files." Chapters: 0:00 Introduction: Heroes vs. UFOs 1:14 The Ravenna, Ohio...

79 min - Archaeology & Mysteries - HISTORY

More: UFOs documentaries

Read Deeper: UFOs

1. UFOs by Leslie Kean - View on Amazon
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3. Extraterrestrial by Avi Loeb - View on Amazon
4. The UFO experience by J. Allen Hynek - View on Amazon

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