It was just an ordinary day at the DEO, Supergirl has come back from a mission, Alex is getting an update on an alien that was brought in, Winn is researching what kind it is on the computer and J'onn is standing behind him looking at the screen, when a portal opens up at the top of the stairs. Meanwhile on a earth that is next door there's Elena, Caroline and Bonnie are at the Grille after spending the day at school trying to relax but they can't because one Damon Salvatore had to ruin there time together, when he left they decided to go back to Elena's for a sleepover where the get sucked into a portal that also opens up but in the middle of the living room.