In more recent stories (2025), The Flash #21 has explored even weirder cosmic horror.
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
: The story offers tantalizing glimpses into Bart's origin in the 31st century. 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.
: It highlights the unique bond between Batman and Flash, grounded in their shared love for forensic science. When Barry Met Bart: The New 52 In more recent stories (2025), The Flash #21
: 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
: In this timeline, Wally West has become a "war general," sending speedster copies of himself on suicide missions to defeat the villain Eclipso. The Button: A Collision of Worlds : The
: Believing Kid Flash might be linked to a series of Speed Force murders, Barry chases the bratty teen across the globe.