Molly Hayes was born to a pair of telepathic mutants, Gene and Alice Hayes, who hid their mutant heritage from their daughter. Molly was originally thought to not possess the X-Gene, but this later turned out to be false, as she had been endowed with super-strength thanks to her mutant heritage. As her parents were members of the Pride, she was among the group of their children who formed the Runaways.
She would later rejoin the team after they reformed following Gert Yorkes' resurrection.
Molly Hayes Hernandez is a young girl with a superhuman strength, a power she gained after being exposed to a mysterious type of rocks prior to and during the explosion that killed her biological parents, Gene and Alice Hernandez, when she was a child. She was adopted by Dale and Stacey Yorkes, the parents of Gert Yorkes. Upon reuniting with her childhood friends, they discovered that their parents used PRIDE to cover up ceremonial sacrifices of the Church of Gibborim. She teamed up with her friends and formed the Runaways. Having been framed for Destiny Gonzalez's murder, and with no other choice, they are forced to run.