This story starts off in early 2000's, having those warm orange tones much like what Smallville had. Barry and Kara are in the same earth. Kara's pod never went off-course, instead, Kal-El never arrived to earth as his pod was sent into a wormhole. Since the day Kara arrived, she's been taken in as Martha and Johnathan Kent as their foster daughter. Barry Allen was born slightly earlier, having the age of 18 at the year of 2004. Apart from this, there are no changes in appearance or backstory. Disclaimer: All rights and characters are reserved to The CW and DC Comics.