This is about Barry's twin sister she went missing the next day after she lost both her parents, she's back but not the same, she's falling deep into the darkness but has she fallen to far to be saved?
barry is in a mission with his team and team arrow that was in gotham and barry sees a broken woman who villain but barry doesn't think she pure evil like most people he encounter so without both team seeing Barry speeds the woman to a place and said he wants to help her