Time travel may still be impossible, but the Chronoscope, sensing the nearly imponderable tracks of ancient photons, allows a glimpse into any event in Earth's distant past. Historian Arnold Potterley is rebuffed when he petitions for use of the Chronoscope to study ancient Carthage. So he commissions the building of a private time-viewing machine, with unexpected results.

Charles Dennistoun, a 60-year-old contestant on 'You Bet a Million' - a quiz show for millionaires - wins the jackpot prize, a course in rejuvenation. But his friends and family have mixed feeling, and the repercussions have blackly comic effects on all concerned.

A human-looking robot housekeeper is the latest gadget to acquire in the ceaseless battle to keep up with the Joneses. But housewife Claire Belmont starts to question the wisdom of her husband's purchase when TN3 (Tony) arrives. Can a man-like robot do everything a man can do: but willingly, obediently, tirelessly? Is a robot less than a man, or more?