The calm before the storm (Avalance)

This follows the story of Sara Lance, an ordinary person, or so she thought. Whenever she dreams, she sees glimpses of what seems like fragments of her past life. But thing is, she doesn't remember any of it. So she just writes it off as being a silly little thing until one day. She comes across this woman on her biweekly 5-mile run, when Sara bumps into her she starts to remember the life she had with this woman, who she knew as Ava Sharpe. Ava disappeared in the blink of an eye, before Sara could say anything, maybe Ava was scared of something...but of what? Maybe Sara will get to see this mysterious person again and maybe her memories come back..right...?