Five thousand years ago, in Sumer, the fallen angels had intercourse with human females and their offspring were a race of giants called Nephilim, destroyed by the great flood. The evil angel Ammon mummifies his son Aramis to save him, and hides in hell. In the present days, the archaeologist Matt Fletcher finds Aramis tomb with excavating for building a resort for the entrepreneur Morton. The engineer Angela joins the team, giving support in the diggings. When some workers mysteriously vanish, Morton hires the security force of Ammon to find the missing men. However, his real intention is to resurrect Aramis in the eclipse of the moon and dominate the human race with a new breed of giants.