When a threat from Felicity's past finds her in Starling City she's driven to face memories she'd long since wished were forgotten. As the risk to her life grows, she's pushed closer to Oliver who is for once at a loss facing a foe who's more like a ghost. Oliver and Felicity admit to their growing feelings for each other as her attacker escalates his attempt to hurt her. However, when the unthinkable happens it will take all the love and care they have for each other to come out the other side.