An alien orphan is sent from his dying planet to Earth, where he grows up to become his adoptive home's first and greatest superhero. He must use his superhuman powers to protect the planet from criminals and save the day. His journey from being adopted by the Kent family in Smallville to becoming Superman is filled with challenges, self-discovery, and the realization of his purpose to protect his new home. Along the way, he encounters love, friendship, and the ultimate battle against the criminal genius Lex Luthor.

Superman battles his evil doppelganger while struggling with an identity crisis and a loss of powers. With the help of his friends, he must save the world from a supercomputer hacker and stop an oil spill in Metropolis.

Superman agrees to sacrifice his powers to start a relationship with Lois Lane, unaware that three Kryptonian criminals he inadvertently released are conquering Earth. Prior to the destruction of Krypton, the criminals General Zod, Ursa and Non disable a security guard at a crystalline matrix table. The general removes a red spire from the table and destroys it; the thunderclap as the piece is shattered resonates through the city and sets off a trap that ensnares the three brigands. On Earth, in the present day, Clark Kent arrives at the Daily Planet for work...

Superman returns to Earth after spending five years in space examining his homeworld Krypton. But he finds things have changed while he was gone, and he must once again prove himself important to the world. For five years, Superman has been away from Earth, coaxed into space by a belief that Krypton may still exist. In the time he's been away, the world has changed--not only has terrorism become rampant, but Lois Lane has been living with Perry White's nephew, started a family, and won a Pulitzer Prize for her piece 'Why the World Doesn't Need Superman.' Meanwhile, Lex Luthor has conned a wealthy widow named Gertrude Vanderworth out of her fortune, with the assumption that he has changed his ways after being in prison. After inheriting her money, Lex, his assistant Kitty Kowalski, and some henchmen take Gertrude's private yacht, and head North toward Superman's Fortress of Solitude. Lex carefully guides them to the location, where he finds several crystals in the fortress' control panel, and the holographic image of Superman's father, Jor-El. After listening to the hologram, Lex and his crew take the crystals and return to Metropolis. Meanwhile, Superman returns to Earth, landing near the Kent Farm in Kansas where his mother, Martha Kent, currently resides. After spending some time with her, Superman re-adopts his Clark Kent persona, and returns to Metropolis.

Superman IV: The Quest for Peace follows the story of Superman as he tries to rid the world of nuclear weapons and bring peace. However, his efforts are hampered by Lex Luthor and a dangerous nuclear missile. Can Superman save the world once again?