21: Flash

In the world of DC Comics, "The Flash #21" has been the title of several major turning points across different eras. Whether you’re looking at the iconic "The Button" crossover or the first meeting between two generations of speedsters, these issues are legendary for redefining what it means to be the Fastest Man Alive. The Button: A Collision of Worlds

In more recent stories (2025), The Flash #21 has explored even weirder cosmic horror. Flash 21

In the 2013 New 52 continuity, The Flash #21 gave fans a long-awaited "race of the century" between Barry Allen and the impulsive teenager Bart Allen, also known as Kid Flash. In the world of DC Comics, "The Flash

One of the most famous versions of The Flash #21 was published in 2017 as the second part of " The Button ". This storyline directly connected the world of the Flash to the mysterious Watchmen universe. In the 2013 New 52 continuity, The Flash

: In this timeline, Wally West has become a "war general," sending speedster copies of himself on suicide missions to defeat the villain Eclipso.

: It highlights the unique bond between Batman and Flash, grounded in their shared love for forensic science. When Barry Met Bart: The New 52

: The issue focuses on the tension between Barry Allen, who believes speedsters shouldn't be soldiers, and a version of Wally that has been pushed to the edge. ⚡ Key Takeaways for Collectors The Flash #21 review - Too Dangerous For a Girl 2