Supergirl: Medusa
The CW hero shows have their big crossover this week. Crossovers are a big thing in comics, so it makes sense that now that they have all these linked shows, they follow suit. While it helps reinforce the shared world of most of the shows, it ended up emphasizing that Supergirl is off on her own. Not only is she literally on a different Earth than the others (Earth 38, apparently), but all the other shows shared the “Invasion!” title for their episodes, where this one was “Medusa,” a follow up on something from last week. They also didn’t do as much for the actual tie-in as the other shows did.
