Longtime Arrowverse producer Marc Guggenheim has unveiled the finalized logo for the upcoming CW mega-crossover, "Crisis on Infinite Earths."

"We finalized this a couple of days ago," Guggenheim tweeted along with the image, which is sleeker and more streamlined than the one that debuted last year following the "Elseworlds" crossover finale.

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Speaking of "Elseworlds," The CW has been building toward "Crisis" for nearly a year now, though the current seasons of The Flash and especially Arrow have been doing the bulk of the heavy lifting. Meanwhile, newcomer Batwoman has steadily streamlined the series' timeline to catch up to the events after Kate Kane's "Elseworlds" debut while Supergirl has yet to address the crossover this season and DC's Legends of Tomorrow still hasn't aired its season premiere.

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

KEEP READING: Stephen Amell Faces 'Toughest' Enemy Yet in Crisis Video