Smallville alums Tom Welling and Erica Durance have returned to the Kent family farm for "Crisis on Infinite Earths." In a new photo posted to Durance's Instagram, the two actors appear in-character in front of a red barn wall.

"So, I was just minding my own business, and I ran into this guy," Durance captioned the photo. "Laughed until I cried! So much fun."

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In the photo, both Lois and Clark are dressed down. Clark sports some red plaid, which is reminiscent of his style on the early 2000s series. Given their appearances, they look to be working around the farm when the crossover picks up with them.

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Welling and Durance aren't the only Superman characters set for the massive crossover event. Tyler Hoechlin and Elizabeth Tulloch will also appear as Superman and Lois Lane, reprising their roles from last year's Arrowverse crossover. Superman Returns' Brandon Routh, who currently stars as a series regular on DC's Legends of Tomorrow, has been confirmed to play Kingdom Come Superman in the crossover.

"Crisis on Infinite Earths" already has a star-studded list of guest stars. Batman: The Animated Series star Kevin Conroy, Black Lightning's Cress Williams, Batman 1966 star Burt Ward, Legends of Tomorrow's Jonah Hex and The Flash triple-threat John Wesley Shipp are among those appearing the crossover.

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"Crisis on Infinite Earths" begins Sunday, December 8 at 8 pm ET/PT on Supergirl, then continues in Batwoman on Monday, December 8 at 8 pm ET/PT and in The Flash on Tuesday, December 10 at 8 pm ET/PT. After the winter hiatus, the crossover will conclude on Tuesday, January 14 in Arrow at 8 pm ET/PT and in DC's Legends of Tomorrow at 9 pm ET/PT.