“One man against the limitless wastes of time, he fought the strange, inhuman civilizations of Earth’s unguessable future, searching hopelessly among the never-ending tomorrows – for the road to one unforgettable yesterday!” [Prologue]
In 1973, physicist Martin Saunders, his girlfriend Eve, and his colleague McPherson construct a time machine. Saunders and his friend Sam Hull decide to give the time machine a test run and set it to the year 2073. When they arrive at their destination, Saunders finds his house in ruins and the nearby village completely gone. The men attempt to return to 1973, only to find that the time machine does not have the energy required to move backwards in time. In desperation, they begin to go forward in time in the hope of finding technology that can help them travel back home.
Saunders and Hull then begin a series of stops in the years 2500, 3000, 25,296, 50,000, 4,000,000, etc., eventually reaching the end of the universe, facing tough challenges along the way and never finding technology advanced enough to travel backwards in time. Time travel is one-way only. But, after traveling billions of years, Saunders comes to realize that the universe is cyclical. He may find his way home after all.