Storyline:
On an archaeological dig in Asia, Dr. Roger Bentley finds a cuneiform tablet referring to an ancient society, the Shadow Dynasty, that was destroyed. An earthquake soon after reveals an ancient artifact and the scientists discover the ruins of an ancient temple world on a remote mountain site. It leads them to an underground world, lost in time, where people have adapted to low light. The High Priest Elinu doesn't welcome the presence of the new arrivals and wants them eliminated.

Cast:

John Agar Dr. Roger Bentley

Cynthia Patrick Adad

Hugh Beaumont Dr. Jud Bellamin

Alan Napier Elinu, the High Priest

Nestor Paiva Prof. Etienne Lafarge

Phil Chambers Dr. Paul Stuart

Rodd Redwing Nazar

Robin Hughes First Officer

Bob Hoy Mole Person (uncredited)

Kay E. Kuter Priest (uncredited)

Medium: Original DVD,

Location: On the Shelf - The Classic Sci-fi Ultimate Collection

Loaned: No

Aspect ratio: 2.39:1