Yes, the Flash from the CW will make a guest appearance on Supergirl on CBS on March 28. Grant Gustin will appear as Barry Allen/The Flash.
Currently there is no information on the how it will happen. Are they in the same universe or is this a parallel Universe? I can’t wait to find out.
The video below is from Comicbook.com. I thought it was fun and worth the view. Check it out.
Stay Geeky My Friends!
