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!

Superman's real identity is in danger of being exposed by a diary written by a man from the future. Clark finally asks Lois to marry him, but the question she asks is even bigger.

Lois's mom arrives for her daughter's wedding to Lex, but Lois's pals have other plans.

Clark Kent becomes embroiled in a story involving Lex Luthor and a plot to sabotage a space launch.

A friend of Jonathan and Martha has found a strange meteorite. Jason Trask is back and now he is in Smallville, looking for this meteorite that can destroy Superman. Lois and Clark go to Smallville to investigate the story and Clark introduces her to his parents.

Lex throws Lois for a loop by proposing marriage. Meanwhile, Clark smells a rat when Lex "saves" the Daily Planet from going under.

Will Lois accept Clark's marriage proposal? The question lingers while Metropolis becomes strangely crime-free.

Using a red-kryptonite laser, two evil sisters inadvertently empower Lois as Metropolis's newest superhero--Ultra Woman.

Lex is back from the dead by the hands of Dr. Gretchen Kelly, and now he wants to get Lois back and destroy Superman. Clark asks Lois out on a date, but, when she accepts, Perry sends them in a stakeout. Then, Lois and Clark call it the ""almost first date"".

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 aliens bring Superman knowledge of his past and his destiny, a terrifying assassin is dispatched to dispose of the superhero. Meanwhile, Lois fears that Clark is drifting away from her.

An ex-lover of Lex Luthor spreads a perfume in the Daily Planet and everybody begins to fall in love with each other. Lois falls for Clark, the only one who isn't affected by the perfume and he tries not to take advantage of her. Without the perfume effects, Lex tells Nigel that he is in love with Lois.

Lois and Clark go undercover as honeymooners to a Metropolis hotel in an attempt to find out about a possible conspiracy which seems to involve a powerful congressman. They also need to learn how to share their lives with someone.

Superman loses his memory--and awareness of his superhuman abilities--in a cosmic collision with an asteroid heading straight for Earth.

A group of terrorists take Clark, Lois, Perry, Jimmy, Jack and Lex hostage in the Daily Planet and Clark is not able do anything with his Superman powers or the others will figure out his secret identity.

Luthor's ex-wife, Arianna, comes to Metropolis and creates an exact, but evil copy of Lois. The real Lois, with Clark, begins to investigate who's behind this creation. She discovers that Lex was already married when he tried to marry her. Arianna tries to kill Superman, because she believes he is responsible for Lex Luthor's death.

Superman saves the life of a musician, but instead of "thank you", the musician wants to sue him because he "broke" his arm. Then, many people of Metropolis begin to fake injures caused by Superman. After finally giving up on her love for Superman, Lois needs to choose who's the one she is going to be together with: Clark Kent or Dan Scardino.

An elfin visitor puts Daily Planet Christmas Eve partygoers into a time loop--and plunges the city into hopelessness and despair.

A probe into alien threats to national security leads to the Daily Planet--and a search for Superman.

Perry White orders the Daily Planeteers to draw out Superman, but Lex may be one step ahead.

The globe from Clark's spaceship begins to give him some information regarding his past, but the globe is stolen by two kids before he can learn much. Lex Luthor buys the globe from Jack and begins to learn something about Superman, but not too much.

A terrorist, together with a Planet researcher, create chaos for Superman, just as he's waxing nostalgic for a sense of permanence in his life.

A Lois' ex-colleague is working for another newspaper who is strangely getting the major news before the Daily Planet and Lois gets jealous when she shows interest on Clark.

The ""Intergang"", a new criminal organization tries to control south Metropolis and Superman is powerless because of their threats against everyone closest to him. Lois gets jealous when the investigator in charge, Mayson Drake, begins to show interest in Clark.

Al Capone, John Dillinger, Bonnie and Clyde return from the dead by the hands of a scientist. They start a crime wave in Metropolis and when one of them shoots Clark, he needs to fake his own death to protect his identity.