Iris and the Flash manages to talk him down ... Dawn and Don were born in the 30th century when Barry and Iris traveled to the future to live out the rest of their days. The DC timeline endures ...

Barry and Team Flash try to figure out a way to change the future to save Iris from her inevitable death. The only way for them to do that is to go back to the future.

Barry travels to the future to find out Savitar's still-unknown identity in the hopes of saving Iris. Upon his arrival, he meets future versions of his Team Flash friends.