The Flash’s 100th episode was one that honored time travel. For a show to reach 100 episodes is iconic and will always be a momentous thing to share.

“It’s a big thing,” showrunner Todd Helbing told ComicBook.com. “Not a lot of shows do a hundred episodes anymore, and it’s 100% because of the fans that we have and the ratings that we get, so we wanted something for them, to say thank you for tuning in for five years.”

It can be hard to get some fans on board for superhero type stories because they are mostly hardcore comic book readers who want their comics to be represented accurately. Other fans want the dramatics of it all which has not been disappointing for any fans of The Flash.

The 100th episode had the team figuring out a way to defeat this season’s villain, Cicada (Chris Klein). “I think last year we deliberately tried to make it lighter and went way too far,” Helbing admitted. “This year, I think you can have a darker villain but as long as the core group is enjoying what they’re doing — that’s season one. I think that’s the magic recipe, and I think that’s the perfect level of darkness. It’s lighter, but Cicada’s darker than probably anybody we’ve done in a while.”

The ending reveals one hero who can possibly defeat Cicada – Killer Frost (Danielle Panabaker) aka Caitlin Snow. Chris Klein revealed what could come next for these two characters as they clash on-screen. He says, “what’s really cool is in the hundredth, Team Flash finally figures out that they might have a way to stop this guy. And in order to do that, they’re going to have to ask Caitlin to really dig in, and it’s something that she’s been resisting to do, and it’s a wonderful arc for her character. A wonderful start of an arc for her character, and it’s a wonderful climax to the chase in the hundredth episode.”

The episode comes to end with the show due for a break until its return in 2019. However, it will be part of the Elseworlds crossover which will premiere on Sunday, December 9 at 8 p.m ET.