The CW Television Network has released a new producer's preview for tonight's episode of The Flash: "The Flash of Two Worlds."

"We're gonna learn a lot more about Jay [Garrick]," says Executive Producer Gabrielle Stanton in the featurette. "We're going to learn about Earth-2 and we're gonna get our first kind of touch on Zoom, who is our big bad this season. Jay comes looking a little too good to be true and I think Barry wants to make sure he is on the up and up."

"At the end of the episode we we're able to create a scenario where we could recreate one of the most famous covers of a Flash comic of all-time: Flash of Two Worlds," she reveals. "So I think that is going to be a really fun moment for fans at the end of the episode. It happens really organically, so if you're not a fan of the comic books you might not notice but if you are you will."

Check out the video below.

Jay Garrick (guest star Teddy Sears), a mysterious man from Earth-2, appears at S.T.A.R. Labs with a dire warning about an evil speedster named Zoom, who is set on destroying The Flash. Barry (Grant Gustin) and the team must decide if they can trust this stranger even as they face yet another powerful meta-human. Meanwhile, Joe (Jesse L. Martin) must deal with a determined officer named Patty Spivot (guest star Shantal VanSanten) who wants to join his meta-human task force.

Jesse Warn directed the episode, which was written by Aaron Helbing and Todd Helbing.

"The Flash of Two Worlds" episode of The Flash airs tonight at 8 p.m. ET/PT on The CW.