Lois finds Clark's lifeless body and removes the blue kryptonite enabling him to heal himself. Lois sneaks away before Clark fully awakens in order to protect his secret. Chloe is desperate to find Oliver, so she turns to an unlikely source for answers. Jonathan returns to the Kent Farm with a message for Clark, and Tess awakens in a LuthorCorp lab.
After Lois departs for Egypt, the Daily Planet hires a new reporter by the name of Kat Grant to take her place. An assassin named Deadshot takes aim at Kat but Clark learns the man has a dangerous hidden agenda that involves the Blur. Meanwhile, Carter Hall turns up in Egypt to keep an eye on Lois, and he tells Lois about his wife Shayera.
Clark is stunned when Kara returns to Earth and tells him Jor-El sent her to stop the dark force that is coming because he doesn't believe Clark can handle it. Meanwhile, Lois confronts Gordon Godfrey, a shock jock radio DJ who has been crusading against heroes, after he threatens the Green Arrow. However, after Godfrey is possessed by the dark force, he takes Lois hostage and Clark and Kara have to come to her rescue.
In an attempt to cheer up Clark, Lois convinces him to attend their five-year high school reunion. A visit back to the home of the Crows has Clark remembering old times with Lana and Chloe, while Lois is furious that no one remembers her five days as a student. Brainiac 5.0 uses his Legion ring to visit from the future and takes Clark through his past, present and future.
Thanks to an Egyptian relic, Lois gains superpowers and goes a crimefighting spree... bringing her to the attention of Cat Grant, who assumes Lois is Blur. Meanwhile, Oliver and Clark have no choice but to turn to Tess for help when dealing with Lois when she gets in over her head.
To protect his girlfriend, Clark tricks Lois into leaving town on a story. When she realizes what's going on, they argue but an accident strands them in the middle of nowhere. Meanwhile, Tess tries to find a cure for Alexander, who is suffering from rapid aging because of his unnatural origins.
General Lane and his daughter Lucy come to see Lois for Thanksgiving, and meet her new boyfriend. Meanwhile, Rick Flagg tries to stop the General from initiating the vigilante registration act by tricking Lucy into luring Clark away so he can hug her father.
After seeing a video of her dead mother, Lois goes to the Fortress to make a fateful decision. Meanwhile, Clark and Tess investigate a mysterious orphanage tied to Tess' past, and confront the headmistress, Granny Goodness, and one of her wards, Harriet.
In an effort to protect the rest of the team, Oliver decides to register for the Vigilante Registration Act to see what the government plans to do with the new law. As he suspected, it was a trap to lure superheroes to an undisclosed location where he is confined to a jail and subjected to a battery of brutal tests under the supervision of Col. Slade.
Tess acquires a Kryptonian box that once belonged to Lionel Luthor. When Clark accidentally activates the box, he's transported to a parallel universe where Lionel found Clark in the cornfields instead of the Kents. In this universe, Clark Luthor is a murderer and Lois is engaged to Oliver and both of them hate Clark. Clark must be careful not to tip off Lionel that he's not his son while trying to figure out how to get back to Earth where the monster Clark Luthor was transported in his place.
The VRA is in full effect and things take an unfortunate turn of events after the Green Arrow tries to stop a mugging but is attacked by citizens for being a super hero. Clark discovers that the civilians who attacked Oliver were all marked with a darkness tattoo. Carter Hall and Star Girl return to help Clark deal with Slade's re-emergence after he kidnaps Lois.
In the aftermath of Hawkman's funeral, the heroes are captured and released... and Black Canary believes that Chloe Sullivan is responsible. Clark and Oliver disagree on whether their friend and lover, respectively, is a traitor.
Clark is surprised to see Martha on the news speaking at a pro-vigilante rally. However, surprise quickly turns to horror when he and Lois watch as Martha gets shot on national television. Meanwhile, Lionel reveals himself to the world and reclaims LuthorCorp from Tess and Oliver.
Chloe and Oliver are mistaken for FBI agents investigating Desaad's recent string of murders and the pair are kidnapped by Desaad's minions. Desaad tries to infect Chloe with the darkness. Meanwhile, Lois tells Clark he needs to be more careful with his identity and suggests a disguise.
Due to a gift from Zatanna, Lois and Clark lose their memories of their respective bachelorette/bachelor parties. As they trace their steps, Clark realizes he may have robbed an armored car, and Lois discovers she stole memory from an eccentric casino owner.
Lois and Clark are shocked after they receive a gift from Tess. Meanwhile, Lionel and Tess face off for control of LuthorCorp.
The Earth-2 Clark Luthor sends Clark Kent to that world, where he meets the alternate Jonathan Kent. While Lois turns to Emil for help to recover her husband-to-be, Clark Luthor seeks out Tess and demands her obedience.
While Lois advises Clark on how to maintain a low profile, a new hero, Booster Gold, travels from the future to present-day Metropolis to become a media darling as a superhero.
Tess determines that a Phantom Zone prisoner has learned of the way to escape, and Clark resolves to investigate by going there. Oliver tricks Clark into taking him along, and they discover that the Zoners have a new leader: Zod. Meanwhile, Lois learns that Tess is aware of one of Clark's secrets and chose not to confide in her.
Clark and Lois go to see Jor-El and receive his blessing, and he gives Lois Clark's superpowers so she can see what his life is like. However, she soon discovers that she will have to use her powers to fight crime when the Toyman returns. Meanwhile, Oliver discovers that he bears the Omega Brand and seeks out a means to remove it, and encounters Kara, who is also seeking to stop Darkseid.
After ten years, Clark Kent completes his epic voyage from freshman high school student to the Man of Steel.