New spoilers have emerged on just why The Flash shows up in Arrow's second season. Get all the scoop below.
Central City's PD CSI Barry Allen heads to Starling City while investigating a series of brutal slayings that he believes may have a connection to his mother’s years-ago murder — a crime for which his father has been unjustly imprisoned.
Get more details on The Flash's upcoming appearance and spin-off here.
Are you excited to see Flash show up in Starling City? And will he form an alliance with Arrow or be the very person against him?