The Flash: The Reverse-Flash Returns

Cisco has a vibe vision of Reverse-Flash killing Tina McGee, and alerts the team. They soon learn that Barry's greatest enemy is back... from a time in his life before he killed Barry's mother and took the body of Earth-1's Harrison Wells. Meanwhile, Patty gives Barry one last chance to admit that he's Flash, Iris says goodbye to a dying Francine, and Caitlin tries to find a cure for Jay's illness by seeking out his Earth-1 counterpart.