The Flash Season 3 “Time Strikes Back” Promo

When Barry went back in time to prevent his mother’s murder, he didn’t just save her from Reverse Flash — he created a whole new timeline. In a new trailer for “The Flash” Season 3, Barry approaches Cisco for help in correcting the “Flashpoint” timeline and explains exactly how he managed to create “a whole new existence.”

Starring Grant Gustin, Jesse L. Martin, Carlos Valdes and more, “The Flash” returns to The CW on October 4 at 8 pm EST.