As Barry Allen, a.k.a. the Flash, learns more about the source that fuels his incredible powers, this same Speed Force that flows through him is unleashed all over Central City, striking cops, criminals and ordinary civilians alike, it's up to the Flash to train this new wave of speedsters to use their amazing abilities wisely! But while some may become his partners in crime-fighting-forming a true "Speed Force"-others will use their godlike powers for a more sinister purpose. And the Flash is about to learn that there's some evil even he can't outrun.