The Arrowverse's "Crisis on Infinite Earths" will include an important character from the comic story.
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According to series lead, Grant Gustin, The Monitor shows up in Season 6's first episode.
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He says in order to save the universe, Barry will have to die.
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In the comic storyline, The Anti-Monitor sought to eradicate all life in the universe.
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The heroes succeeded, but Barry died in the process. Wally West became the Flash afterward.
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He said Barry doesn't know about the deal Oliver Queen made with the Monitor...
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... adding, "so someone’s gonna die.”
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The Flash returns on Tuesday, October 8 at 8 pm on The CW.
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