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On the Trail of the Nephilim: Episode 1 - The Mysterious Moundbuilders
- ஆண்டு: 2018
- நாடு:
- வகை: Documentary
- ஸ்டுடியோ: Spiral of Life
- முக்கிய சொல்: native american folklore, on the trail of the nephilim
- இயக்குனர்: L.A. Marzulli
- நடிகர்கள்: L.A. Marzulli, Race Hobbs, Fritz Zimmerman, Timothy Alberino, Hugh Newman