Origin
She was prostitute on street of Chicago.
Creation
Lightning created by Erik Larsen.
Character Evolution
Image Universe

When several members of the Special Operations Strikeforce were either killed or proved useless in combat, Stephenson and Hawkins set about recruiting a number of new heroes. Lightning was one such recruit and after a period of training, she was soon added to the active roster. Lightning was then later transferred to the newly opened Chicago branch of the S.O.S. and was under Dragon’s leadership.
Savage World Universe

In this universe, she is still a prostitute in the bad lands of Chicago.
Major Story Arcs
Image Universe
Rapture Returns

When Rapture returns in the body of her old prostitute friend and transform it. She tells that when she die at hand of Darklord, her powers and her soul went into her friend. As her friend she joins the Special Operations Strikeforce as ‘Lightning’. It’s later revealed that Rapture really was a Covenant Of The Sword Operative Imposter.
Lightning Returns

The Covenant of the Sword began abducting heroes to serve as their superhuman enforcers and Lightning was one of their victims. She was brain-washed by Damien DarkLord into becoming a loyal servant of his cause. Following the eventual defeat of the Covenant, Lightning liberated and rejoined the S.O.S.
Powers & Abilities
Electricity Control
Electricity generation
Other Versions
DarkWorld Universe

She is prostitute on street of Chicago, before the planet blow-up.