Lois and Clark need to travel to 1966 with the help of H.G. Wells and his time machine to prevent a villain from the future who wants to destroy the baby Superman. The villain tells Lois about Clark's most important secret...his secret identity!

Time traveler Tempus returns to snatch Lois away to a parallel universe, where she links up with H.G. Wells--and a more cynical Clark.

As the newlyweds are about to consummate their marriage, time traveler H.G. Wells arrives with news that a curse threatens to strike them down.

Tempus, the time traveler, returns to Metropolis as a Presidential candidate bent on controlling the minds of the masses.

With Superman lost in a time warp, an alternate Superman from another dimension helps Lois combat the diabolical Tempus, the new President-elect.