"Sinking Day" is apparently an Atlantean holiday -- one which marks the date when the city sank into the ocean, as its name suggests.
This week, we saw it being celebrated...but what else did we see?
Quite a bit, as it turns out. Powerless continues to be a haven for Easter eggs, knowing winks and sly nods of all kinds.
In tonight's episode, we got meta jokes, metahuman jokes, and either mentions or cameos from a number of comic book characters, comic book creators, and beyond.
So...what did we see? What did we miss?
Read on, and hit us up @comicbook if we missed anything.
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Justin Halpern, Patrick Schumacker, Len Goldstein, Marc Buckland and Dean Lorey are executive producers of Powerless. Buckland served as the director of the pilot. The series is produced by Warner Bros. Television and is based on the characters from DC.
MORE: Joker Reference in Wayne Security Commercial for Powerless / Alan Tudyk Explains Why Batman's Cousin Admires Lex Luthor / Showrunner Explains How Powerless Connects To DCEU / New Powerless Promo Reveals Alan Tudyk is Playing Batman's Cousin / Powerless Promo Drops Superman Joke / Powerless Image Contains Batman Easter Egg
"Sinking Day" episode of Powerless will air Thursday, February 16 at 8:30/7:30c.