Yes, they are dressed up like Star Trek characters. Yes, they are probably trapped in a TV show (again). I don’t care. This promo is fantabulously insane and abso-fucking-lutely delightful.
(By the way, the episode where they are trapped in a TV show is literally called “The One Where We’re Trapped on TV.” Because Legends of Tomorrow loves meta.)
Go watch it. And then be thankful we’re getting a new episode tomorrow.