Remembers his memories and speed from the Flashpoint timeline and hunts Barry down.
If you break a coffee cup and glue it back together, it might hold water again, but it will always have cracks.
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Introduced as Barry's new, arrogant CSI lab partner (played by Tom Felton). He has worked with Barry for a year in this rewritten timeline, and he openly distrusts him.
Cold and grieving because his brother Dante was killed by a drunk driver in this timeline. He resents Barry for refusing to run back in time to save Dante. [S3E2] Paradox
Sullen and not speaking to each other because Joe kept the secret that Iris's mother was actually alive.
Barry cannot keep resetting time until it is perfect; he must learn to live with the consequences and the "cracks" he created in his own reality. 💔 The Timeline "Cracks" (The Fallout) Remembers his memories and speed from the Flashpoint
The central metaphor of the episode is delivered by Earth-2's Flash, Jay Garrick. He pulls Barry out of the Speed Force and uses a coffee cup to explain time travel: