Spoilers follow for The CW’s The Flash Finale, “Fast Enough”, Season 1 Episode 23, S01 E23.
In addition to the full spoilers, review with the episode’s Top 5 developments here, the below was the most pivotal scene in the episode.
After present-day Barry Allen / The Flash went into the past to save his mom Nora Allen from dying, his future self – vibrating at super speed as he chases the Reverse Flash – stops him from doing so. Emotional.