"Crisis on Infinite Earths," which unfolds over Supergirl, Batwoman, The Flash, Arrow and DC's Legends of Tomorrow, will be a different beast than its predecessors. Past Arrowverse crossovers such as "Crisis on Earth-X" and "Elseworlds" aired their three or four-part storylines uninterrupted over as many nights in the same week.
However, "Crisis on Infinite Earths" will take a break after its third chapter in December and return for a two-part finale in January, and producer Marc Guggenheim has revealed the hiatus will come following a deliberate cliffhanger.
"The story for #CrisisOnInfinteEarths was worked out with this break in mind," Guggenheim told a fan on Twitter. "So Hour 3 ends on a cliffhanger. Sorry not sorry." What's more, it appears the fourth episode will not pick up exactly where the cliffhanger left off, as Guggenheim confirmed "The break is accounted for."
The break is accounted for. https://t.co/suWyjhXgZh— Marc Guggenheim (@mguggenheim) November 26, 2019
"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.