Soon after the season 3 finale, Mon-El and Kara are reunited when a strange portal opens. Will they get back together and what will happen with the portal? And who or what will come through it? **Just a quick note: I took this from my account on fanfiction.net, so this is my story, but I am continuing it on Wattpad. Disclaimer: I do NOT own Supergirl, The Flash, or Arrow. I just own some of the made up characters in this story.