Back before crossovers and cosmic threats and moral gray areas, superheroes had one consistent enemy, in the comics: Nazis. So much so that DC has an entire universe dedicated to creepy Nazi versions of the Justice League who regularly got their butts kicked, the Master Men. And, it turns out, said Master Men are coming back to get their butts handed to them on this week’s geeky TV.
Crisis on Earth X, this year’s big four-parter on the CW, picks up with Barry and Iris’ wedding. This being a superhero wedding, of course, villains crash it, namely the aforementioned Master Men, who live on Earth-X. The Master Men are after Supergirl for their nefarious plot, which involves invading our Earth because that’s not a ticket to a beatdown or anything. Guys, seriously, Ollie alone can whip squads of ninjas barehanded. Really we’re surprised this isn’t just, say, Wild Dog and Cisco doing a hard-traveling heroes thing while the wedding wraps up. Anyway, the CW DCverse will cross over starting with Supergirl, tonight at 8pm ET on the CW, and a special episode of Arrow, on tonight right after at 9pm ET, while The Flash and Legends of Tomorrow will wrap it up tomorrow, Tuesday, at 8pm ET and 9pm ET, respectively.