“We really are trying to make it as much like a live comic book as possible,” The Flash executive producer Gabrielle Stanton explains—and this video delves into the technical aspects that ambitious goal demands. Including the seamless mixing of CG and live-action in fights and cityscapes, and in scenes with characters like Gorilla Grodd.

Watch to the end for a tease about the CG-enhanced meta-humans that will appear in the new season, which starts Oct 6.