A new clip from "Crisis on Infinite Earths" brings the universe's greatest heroes to Earth-38.Posted on comicbook.com, the scene seems to begin following the destruction of Argo City. As Supergirl (Melissa Benoist) and her team try to figure out what happened, Harbinger (Audrey Marie Anderson) appears along with Superman (Tyler Hoechlin), Lois Lane (Bitsie Tulloch), Oliver (Stephen Amell), Mia (Katherine McNamara) and Batwoman (Ruby Rose). After some tense back and forth between Harbinger, Supergirl and Batwoman, Kate unmasks, and the team begins to plan their next move.

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The scene confirms that Superman and Lois' son is named Jonathan and that Alura (Erica Durance), Supergirl's mother, died when Argo City was piped out by the wave of anti-matter. The clip also features a bonding moment between Kara and Kate, a relationship that will be further explored as the crossover continues. Finally, there is a humorous moment when J'onn J'onzz learns that Oliver has a daughter.

"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.

(via Discussing Film.)

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