Plot summary
Lois and Clark are ready to consummate their marriage when H.G. Wells ( Terry Kiser ) appears to inform them that they cannot do it since there is a curse on their love and if they do, Lois will die of a terminal disease after the consummation. The man who is behind the curse is the evil Tempus ( Lane Davies ) and the only way to lift the curse is for them to travel back in time, to their past lives when the curse was first applied. They first travel back to an era where Tempus is known as Baron Tempos and Clark is Sir Charles, his best knight.
Clark does not have his powers but he has a secret identity, the Fox, who steals from the rich and gives to the poor. Lois is Lady Loisette, Baron Tempos' girlfriend but also the Fox's secret lover. Lois and Clark try to break the curse and when they think they did, they get back to Metropolis only to realize that Tempus is a King and about to marry Lois. They travel back in time again with Clark's secret identity being the Lone Rider this time. Tempus blackmails Lois a.k.a.
Lulu to marry him otherwise he will kill her parents who as it turns out are actually Martha and Jonathan Kent. The Lone Rider manages to save her parents and Lois does not marry Tempus. The Lone Rider arrests Tempus and hands him over to the sheriff who looks a lot like Jimmy Olsen. Clark and Lois can now return to Metropolis. This time everything is back to normal, Wells leaves and the two of them finally consummate their marriage. Note: Last appearance of Terry Kiser as H.G. Wells.
Credits
Adapted from Wikipedia contributors, Lois & Clark: The New Adventures of Superman season 4. HTML formatting and reference markers removed.