In an underground city, Queen Phaestra uses a past-viewing machine of vague nature to show the destruction of Atlantis to two good-hearted men. But Atlantis itself is not visited, and there are no time phenomena apart from the viewing.

When Joan Carmody sends a plea to her ex-boyfriend Bert Redmond, he barrels from Indiana to upstate New York in a trice, only to see Joan and her borderline-mad brother Tom kidnapped by metal monsters from another dimension. Fortunately, a mourning, immortal wanderer through time and space also sees the abduction and fills in Bert with all the salient details and some unsalient ones, too.

Pilot Stanley Kent and his client, spoiled authoress Ruth Owens, find themselves in a piece of Venus that’s been transported from the past, whereupon they have exciting adventures.