Dreamer Dreams a Big Dream of Lex Luthor in Supergirl Sneak Peek

In this clip from tonight's Season 6 premiere of Supergirl, Kara (Melissa Benoist) and her crew learn from Lena Luthor (Katie McGrath) more about the full extent of the threat posed by her brother Lex (Jon Cryer) in his attempt to basically take over the world. That triggers Dreamer (Nicole Maines) to realize that Lex is trying to become the universe-threatening entity known as the Anti-Monitor. 

Supergirl returns Tuesday, March 30, at 9:00 PM ET on CW.

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Andy Hunsaker has a head full of sitcom gags and nerd-genre lore, and can be followed @AndyHunsaker if you're into that sort of thing.