Famed archeologist Rick Banning has mysteriously vanished after reports surfaced claiming that he had unearthed the mythical lost city of Lemuria, and now it's up to fellow adventurers Ace Zucco, Mike Flannigan, and reporter Fay Kendal to head for the Middle East and find out what grim fate befell the missing archeologist. After tracing his trail from London to Scotland and ultimately Egypt, the trio arrives in Lemuria to discover that the dreaded, 3000 year-old Queen Amanetor has been eagerly awaiting their arrival.