Lana Lang is a main character in the Smallville TV series. She is Clark Kent's first love but appeared as the main antagonist in the Seventh Season episode "Wrath".
Lana was the daughter of Laura and Lewis Lang. When she was three years old, her parents were killed in the meteor shower that hit Smallville in 1989. Her Aunt Nell adopted her and gave Lana a necklace made out of the meteor that killed her parents as a memory.
They lived a mile away from the Kent Farm. During her years at Smallville High School, Lana was frequently the victim of various meteor freaks who meant her harm but was constantly saved by Clark Kent who loved her.
In her junior year of high school, she discovers that her mother had an affair with another man, Henry Small, was her biological father who had a different family.
When Lana discovered that she was not pregnant and instead and been injected with hormones, she began to harbor a deep, dark, secret hatred for Lex and Lionel Luthor for semi-forcing her into a marriage as well.
After her marriage to Lex ended, Lana felt the only the way to be truly free of the Luthors was to fake her death and leave Smallville. She was successful by using a clone of herself from a 33.1 facility in the explosion and went to Shanghai China to hide. Lex managed to find her and offered Lana a chance to return to Smallville and she wouldn't face any repercussions.
Taking Lex on his offer, Lana returned and reunited with Clark and began to live with him at the farm. Unknown to Clark, Lana had stolen ten million dollars from Lex and used it to create the Isis Foundation that was designed to help meteor-infected victims of Level 33.1 but secretly housed numerous security screens to spy over the Luthor Mansion and Lex himself. Lana's hatred for the Luthors grew increasingly and her desire for vengeance was kept hidden from Clark. Lana hired a woman named Marilyn to hold Lionel captive but he managed to escape and confronted Lana warning her not to continue her descent to the dark side or something bad would happen to her.
Despite all this, Lana managed to fool Clark and made him try to get their relationship on track by being more honest with each other. During a romantic afternoon, a storm brewed and Clark was weakened by a piece of kryptonite. As Lana picks it up to throw it away, lightning strikes the windmill and shoots through Lana and Clark. Clark's powers were incompletely transferred to her as Lana received some of his abilities.
While super-speeding, Lana had a faint purple aura. She enjoyed the fact that they were equals and took advantage of this by having sex, causing minor earthquakes across Smallville. Concerned by the earthquakes, Chloe went to see Clark and discovered the true origin of the seismic tremors, which embarrassed and surprised her. Clark was surprised that Lana talks about their sex life with Chloe when Chloe whispered to Lana that she thought they couldn't have sex.
After Lana goes upstairs, Chloe warns Clark that it has gone badly before when Clark has had his powers siphoned off. Clark asks Chloe to keep an eye on Lana. Upstairs, Lana overhears them talking about her and becomes furious, breaking a mirror. Chloe takes Lana to the Talon where she tries to warn her, but Lana says she wants to use her powers to tell her story.
Her new abilities amplifying her anger, Lana wanted vengeance and to make Lex pay for his crimes.