"The Flash" Season 2 ended on a universe-altering, unpredictable cliffhanger, which has left comic book fans excited for what is known as Flashpoint in the comic book universe. Barry's (Grant Gustin) decision in the finale episode basically undermined everything he learned over the past two seasons.
Zoom (Teddy Sears) had stolen a device called Magnatar from Mercury Labs in an attempt to destroy the entire multiverse, leaving only Earth-1, which he would then rule over. This storyline is a simplified version of Crisis on Infinite Earths, an important plot in the comic books.
However, Zoom hides this masterplan from Team Flash, claiming he just wants to race Barry and prove once and for all, who the fastest man alive is. Barry, who is infuriated about the murder of his father Henry Allen (John Wesley Shipp), learns about Zoom's plans. Team Flash, however, locks him up, because they fear that his anger will get the better of him.
Wally (Keiynan Lonsdale) still believes in the Flash and lets him out and Barry goes on to defeat Zoom. Confirming the suspicion of many fans, the man in the iron mask was revealed to be Henry's Earth-3 doppelganger Jay Garrick, whose identity Zoom stole.
Things should have been hunky dory, but Barry decides that he had lost enough and decides to save his mother from getting murdered by the Reverse Flash. He goes back in time, saves his mother and says a silent hello to his last year self who fades away.
Basically, Barry just rebooted the timeline since what should have been the night of his mother's death. This is very similar to the Flashpoint in the comic book universe, but the show might not necessarily follow the exact storyline.
The showrunners had promised an epic crossover next season, which will also hopefully involve "Supergirl," considering she is not part of the CW/DC universe. How will the Flashpoint storyline impact these shows?
Did the timeline alteration allow Supergirl's (Melissa Benoist) shuttle to land on Earth-1? Will Wally be the Flash instead of Barry, and the latter recreate a particle accelerator accident again to get his powers back? Will Laurel be alive in "Arrow" Season 5 and Captain Cold for "Legends of Tomorrow" Season 2?
We will attempt to answer these questions and others during the course of the next five months. The release date for "The Flash" Season 3 is yet to be confirmed, however, it is safe to assume the premiere will happen in October, hopefully on Tuesday, Oct. 4.