It's safe to say the Legends of Tomorrow will be seeing a lot of the 1940s in season 2. The series has yet to announce a new villain, but few time periods open the door to such a devastatingly global scourge of evil than WWII.

Rip Hunter's (Arthur Darvill) team is already set to cross paths with an African-American female soldier with ties to an "elite paramilitary team"; Dr. Nate Heywood (Nick Zano), a potential meta whose grandfather (Captain Steel) hailed from the Greatest Generation; and a young version of Vixen's grandmother (as played by Maisie Richardson-Sellers) in season 2. If that wasn't enough to solidify the series' connection to World War II, they will also come in contact with Albert Einstein himself.

"Look for the Legends of Tomorrow crew to cross paths with a circa-1942 Albert Einstein in Season 2, but they're disillusioned to discover that the legendary scientist is a snarky, brusque skirt-chaser," TV Line teased on Monday. "Needless to say, he proves to be quite a handful when they attempt to save his life."

According to Brandon Routh (Ray), the sophomore run will dial back the time jumps now that Vandal Savage is no longer hoping across the centuries.

"I think we'll be spending more time in one time period, it'll be about getting the relationships sorted out after the first season," Routh told Comic Book Movie.

Meanwhile, the introduction of Rex Tyler, aka Hourman (Patrick J. Adams), has the potential to introduce various members of the Justice Society of America.

"With his final words in the finale, he planted a pretty deep flag about where we're headed in season two, which is not just introducing Hourman but introducing his teammates in the Justice Society of America," executive producer Marc Guggenheim told Collider. "For comic book fans, everyone knows the Justice Society is really the precursor to the Justice League, so it's a pretty big move in our DC universe here on TV."

Find out more when Legends of Tomorrow returns to The CW on Oct. 13 at 8 p.m. ET.

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