Dark clouds gather around Barry and his new family when the citizens of Central City meet Negative-Flash. The Flash sets out to save everyone he has ever loved from Negative-Flash, but there's just one problem: he is Negative-Flash!

Barry Allen experiences the most brutal fight of his life when he faces off against Bloodwork, a gruesome new villain. Making things worse is that this unstoppable threat is all Barry's fault! Witness the penultimate act of the Negative-Flash story and the beginning of an unforgettable new chapter in Barry Allen's life.