The CW released the second part of The Flash fan QnA where one question mentioned if time travel will factor into the series.
Writer/producer Greg Berlanti says he doesn't want to give away too much, but time travel is sort of seen in the premiere, and he adds they don't do anything they don't want to see continued or that won't payoff.
The Flash premiers Tuesday, October 7th at 8pm ET on the CW.
After a particle accelerator causes a freak storm, CSI Investigator Barry Allen is struck by lightning and falls into a coma. Months later he awakens with the power of super speed, granting him the ability to move through Central City like an unseen guardian angel. Though initially excited by his newfound powers, Barry is shocked to discover he is not the only "meta-human" who was created in the wake of the accelerator explosion -- and not everyone is using their new powers for good. Barry partners with S.T.A.R. Labs and dedicates his life to protect the innocent. For now, only a few close friends and associates know that Barry is literally the fastest man alive, but it won't be long before the world learns what Barry Allen has become...The Flash.