The Flash: Everything You Need to Know Before S3

In the Season 2 finale of "The Flash," Barry Allen changed everything. The ramifications of his actions will be felt in Season 3, which will adapt a well-known DC Comics event, and everything we've heard about the follow-up so far has major implications for Barry, his friends and Earth-1 in general. In anticipation for this world-shaking season of "The Flash," CBR breaks down everything we know (so far) to prepare you for Barry Allen's bold new world.

Here Comes "Flashpoint"

After some speculation and a lot of teases, "Flashpoint" is finally here. On Twitter, "The Flash" star Grant Gustin confirmed Season 3 will kick off with its own spin on the major DC Comics event from 2011, which found Barry Allen trying to navigate a totally altered world where his mother Nora was alive.

This won't come as a major shock to fans of the show. After all, Barry sped back to the night his mother died in the Season 2 finale and stopped Reverse Flash from killing her, irrevocably changing his past -- and that's where the season ended. In the comics, Barry returns to the present to discover that he not only lost his powers, but transformed his timeline into a bleak world where Thomas Wayne became Batman and Superman was detained by the government his whole life, among other things.

In this new timeline, Barry encounters a brave new world where both of his parents are alive and Wally West is Kid Flash. Joe West will also be on the outs with his daughter Iris West because of unrevealed reasons, though she will still be a reporter. Barry will encounter Joe at a low point, and Barry will have to work hard to get Joe out of his rut.

"When we find [Barry], he's been in this timeline for three months. He didn't grow up with Joe... or Iris. They're kind of acquaintances. He's still a CSI," Gustin explained.

"Every character has different relationships with different characters, and that's a result of 'Flashpoint,'" added executive producer Todd Helbing.

"[Barry]'s starting to have new memories of graduating high school and college, memories he never had with his parents, but those memories are replacing other things from the other timeline," Gustin revealed.

"Barry is the only one that knows the timeline is different, and his memories are starting to get replaced from the previous timeline with new memories, like graduating high school and graduating college, moments with his family," he shared. "When he realizes those memories are replacing other memories, that's when he stars to realize how selfish of a decision this was and that maybe he should try to put things back the way they were."

"In the same sense that he's forgetting a lot of memories, it means he's forgetting his powers too," he continued. "It's like he's having a full 'Back to the Future' moment, where essentially his hand is disappearing in front of him."

According to Gustin, "[Season 3] is pretty 'Flashpoint' focused right now, which I think we are going to see the repercussions coming out of 'Flashpoint. There will be ramifications all season long from 'Flashpoint.'" However, that doesn't mean "Flashpoint" will remain in effect forever. "'Flashpoint' does not last all season long," he added. "But there are permanent ramifications."

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