After an unexpected guest from the future, Nora West-Allen, appears at their home, Barry and Iris must figure out how to get her back to the future without disrupting the timeline - even more than she already has. Team Flash must work together to send Nora back, while simultaneously fighting off another villainous meta.
Did You Know?
At 4:08 when Barry says "...step on the wrong butterfly..." he is referencing "the butterfly effect" and/ or the movie "A Sound of Thunder" both of which address the consequences of ripples in time and space. See more
Okay, let's back up. My name is Nora West-Allen, the fastest woman alive. When I'm from, 30 years from now, I'm the guardian of Central City. I'm a speedster, just like my dad. People call me XS. Every day, I hope to live up to the legacy of The Flash... But I've still got a long way to go.