After the collapse of the Fortress, Oliver, Arthur Curry (Alan Ritchson), and Dinah Lance (Alaina Huffman) set out searching for Clark. At the same time, newly promoted Tess Mercer also begins searching for Lex. Oliver discovers that Clark is being held captive in Russia and leaves to rescue him. Chloe is revealed to be in the custody of LuthorCorp, who have been testing her developing powers, which now include super-intelligence. Lex's assistant Regan Matthews (Ari Cohen) has been using Chloe t
On Clark's first day at the Daily Planet, a bomb on a bus goes off outside the building. Chloe helps one of the injured passengers, Bette (Jessica Parker Kennedy), and meets paramedic Davis Bloome. Bette, a homeless teenager, stays with Chloe while Davis contacts a friend who runs a shelter for the homeless. Clark discovers that there was no bomb on the bus, but that someone blew it up with their meteor power. Clark and Lois deduce that Bette is the one with the meteor power, and Clark arrives a
Oliver collapses at a fundraiser and reveals to Clark and Chloe that he has been poisoned and only has twelve hours to live. Chloe calls Davis, who attempts to find a cure for Oliver's ailment, while Clark tries to find out who is responsible. Tess assigns Lois the job of uncovering the truth about Oliver's "drunken fall" at the fundraiser. While unconscious, Oliver relives the time he was shipwrecked on an island and how he first learned to shoot a bow. He also relives his first meeting with Te
Tess and Dr. Edward Groll (Bill Mondy) activate the crystal that built the Fortress, which results in an energy beam being sent into space. An alien, Maxima (Charlotte Sullivan), from the planet Almerac, recognizes the beacon as Kryptonian and comes to Earth to search for the Kryptonian she believes sent for her. Maxima tracks the signal to Tess, and then mistakenly identifies Jimmy as the Kryptonian. Maxima's kiss almost kills Jimmy, but Clark comes to the rescue. Maxima realizes Clark is the K
Chloe and Jimmy are kidnapped after their engagement party by a jeweler named Macy (David Lewis) who wants to test their love. Using a lie-detector to quiz them, every time one is caught in a lie, the other is punished with a surge of electricity. Clark and Lois discover that they are missing and pose as a couple to lure the kidnapper out of hiding. Chloe and Jimmy survive, answering the questions to Macy's satisfaction, who sets them free. Lois is kidnapped by the jeweler. Clark goes to her res
A serial killer attacks a local club, injuring and murdering several patrons. Clark arrives and discovers Davis's body, covered in blood and lying unconscious on the floor. Davis denies any memory of the event. While looking for clues, Clark again encounters Martian Manhunter, who, since losing his powers, has taken a job as police detective John Jones. John and Clark work together on the attack, with John indicating that there have been others and that Davis has been the first to arrive on each
Lois and Jimmy are mugged on the street, and when Jimmy attempts to snap a picture of the mugger he catches a blurred image of Clark saving Lois. Jimmy goes on the hunt to identify the mysterious "Good Samaritan", and Chloe tells Clark that he should use this opportunity to create an alter ego for himself like Oliver has with Green Arrow. Tess plants a new reporter named Sebastian Kane (Kyle Schmid) at the Daily Planet, who has the ability to steal memories, to find out if Lois stole the crystal
Someone sends Clark the crystal to rebuild the Fortress. When Clark touches the crystal, it activates and sends him and Lois to the Phantom Zone. There, Clark and Lois find Kara (Laura Vandervoort), who helps Lois escape back to Earth, but General Zod's wife Faora also escapes and takes over Lois's body. Faora sets out to find her son, who turns out to be Davis – Faora explains that he was created when Faora and Zod could not have children. When Davis does not recognize her, Faora kills him, pro
Chloe's memories begin rapidly disappearing, as Brainiac replaces them with Kryptonian code, with the symbol for "Doom" appearing repeatedly. After Chloe forgets everyone, except Davis, Clark decides he has to use the crystal to rebuild the Fortress and have Jor-El (voiced by Terence Stamp) restore her memories. Clark then makes a sole provision, that all of Chloe's knowledge about Clark's true identity be removed. As Jor-El restores her memories, Brainiac leaves Chloe and infects the Fortress,
While Lois organizes Jimmy and Chloe's wedding, Oliver shows up on the Kent farm and informs Clark that Lex is still alive, but he needs Clark's help to find Lex's exact location. Clark declines his immediate assistance, explaining that Chloe no longer knows his secret and would never understand why he could not give her away at her wedding. Traveling to Cuba, Oliver meets Lana (Kristin Kreuk), who has also been following Lex's trail. Oliver convinces Lana to come back to Smallville, and she arr
Clark is attacked by Persuader (Fraser Aitcheson) in his barn, but he is saved by a trio of superpowered aliens from the 31st Century, called the Legion, consisting of Rokk (Ryan Kennedy), Imra (Alexz Johnson), and Garth (Calum Worthy). While inhabiting Chloe's body, Brainiac informs Davis that he will soon become the creature "Doomsday" permanently, and places him in an ice cocoon for the metamorphosis. The Legion members inform Clark that he is supposed to destroy Brainiac for good, but the on
John is shot by an unseen assailant while on duty, and Chloe and Clark suspect that the shooter was another police officer. Clark goes undercover as a cop to identify the shooter. Clark discovers that a group of officers are taking the law into their own hands and killing criminals. The group realize who Clark really is and frame him for John's attempted murder. Believing that Green Arrow is on to them, the cops attempt to kill him, as well. Luckily, Clark's words of encouragement persuade one o
Believing that Lana has been kidnapped, Tess tells Clark that she believes Lex took her. She also informs Clark that the reason Lana left after coming out of her coma was because Lex had her taken into custody when she woke, and forced her to break up with Clark via a video. After Clark talks with Chloe, he realizes that Lana never returned because she was busy plotting her revenge against Lex. Clark and Chloe discover that Lana was not kidnapped, but intends to use Lex's "Prometheus" technology
Just as Oliver is announcing to the LuthorCorp board of executives that Queen Industries has bought controlling interest in LuthorCorp, a bomb detonates in the meeting room. Clark and Lana investigate the bombing and discover that the bomb was made with kryptonite. Lana also discovers that her suit not only gives her strength and speed, but absorbs kryptonite radiation as well. The bombmaker, Winslow Schott (Chris Gauthier), a former Queen Industries employee now under employ of Lex (portrayed b
Lois returns to Smallville and is not happy to see Clark. Linda Lake (Tori Spelling) comes back and threatens to expose Clark's secret if he does not agree to provide her with the inside scoop on all of the "Red-Blue Blur" heroics he performs. Instead, Clark has Lois write his story as a means of controlling the inevitable. In response, Linda announces that Clark is part of an alien invasion and that he killed Lex. With the police after him, Clark uses his Legion ring to go back in time and stop
Clark begins to embrace the idea of a double identity by wearing his blue shirt under his suit, carrying his red jacket in his backpack, and switching into his Red-Blue Blur persona whenever he needs to. Tess orchestrates an elaborate plan to expose Clark's secret, which involves stranding the two of them on a plane on the verge of crashing. Clark manages to get the two to safety without Tess seeing him use his powers. Meanwhile, Jimmy witnesses Davis murdering a man in the hospital, but Davis d
A magician named Zatanna (Serinda Swan) grants Chloe's wish to have Lois's life, and as a result Chloe wakes up with Lois's body. Chloe informs Clark about what has happened and the pair track down Zatanna. Chloe learns that to reverse the spell she has to not want the wish any longer; at the same time, Clark inadvertently wishes to have a normal life, which deprives him of the knowledge of his abilities. Zatanna visits Oliver and offers to grant him one wish if he can find her father's book of
After doing some research, Tess informs Davis that he crash landed to Earth in 1989, during the Smallville meteor shower, alongside another boy. She tells Davis that he and Clark are destined to fight and kill each other, and that Clark cannot accept his role as Earth's savior until he kills Davis. Davis remembers that he was hurt by kryptonite as a child, and has Chloe lock him in a tank and drown him in a kryptonite solution until he dies. Tess tries to convince Clark that she knows who he is,
After saving Chloe from a carjacker, who turns out to be local mobster Bruno Mannheim (Dominic Zamprogna), Lois takes on the superhero persona of "Stiletto" which she uses to get closer to the Red-Blue Blur and convince him to give an interview to herself. Jimmy is enlisted to take photos of Lois in her Stiletto costume, but his camera is taken by the mobster who wants revenge on her. Clark goes looking for Stiletto in an effort to track down Chloe's laptop that contains files on Oliver and his
Clark begins to suspect that Davis is alive and when the Metropolis police issue a manhunt for Davis, whom they believe to be a local serial killer, Chloe decides it would be best if they both just left Smallville. Clark informs Chloe that he can send Davis to the Phantom Zone using the crystal from the Fortress. Hearing this, Chloe lies and tells Clark she thinks Davis could be in Alaska. Clark finds Davis in the process of killing Oliver, but he intervenes and takes Davis to the Fortress. Clar
Tess gathers a team of meteor-infected individuals consisting of Bette / Plastique, Eva Greer, Parasite (Brendan Fletcher), Livewire (Anna Mae Routledge), and Neutron (Jae Lee) to track Doomsday so that she can give Clark his location, and hopefully convince him to kill Doomsday. Neutron is killed by Doomsday and Livewire has her powers stolen by Parasite before being killed offscreen by Tess. Eva pretends to be Chloe in order to trick Clark into killing Doomsday. After Eva's death, Plastique an
Rokk returns from the 31st Century and informs Clark that Doomsday will kill him and gives him a new Legion ring to transport Doomsday to the future. Instead, Clark decides to use black kryptonite to split Davis from Doomsday and bury the beast a mile underground. Tess confronts Lois about stealing the Kryptonian orb. As the two fight, Lois finds the Legion ring and is transported to another time in history. When Davis starts to change, Chloe uses the black kryptonite to split him herself. Clark