Rylie Garrick has been a speedster her entire life, and she thinks her life is perfect. She gets to run with The Flash, Jay Garrick, who is actually the one who raised her. But when she finds out who he really is, and what he's planning, she has to go to the other earth to save this so called other Flash named Barry Allen and his friends, but when tables turn and she becomes the superhero, things are completely different.