The Flash Reborn

"The Flash Reborn" is the upcoming first episode of the fourth season of The Flash and the seventieth episode overall. It will air on October 10, 2017.

Synopsis
COMING HOME — With Barry in the Speed Force, Iris, Kid Flash, Joe and Vibe have taken over protecting Central City. However, when a powerful armored villain threatens to level the city if The Flash doesn’t appear, Cisco makes a risky decision to break Barry out of the Speed Force. However, the Barry that comes out isn't the same Barry that went in.