Meanwhile, in another timeline, a girl Duck is disappointed that Grace didn't turn into a guy like she sometimes does. There's a whole multiverse of disappointment, which once again brings quantum mechanics into the mix.

I'm not sure if I'm confusing the 1979 Captain America movie with the 1990 one in my head. I was thinking of the one where he steals a lot of cars for some reason. Either way, I had to go with the older option, and steadfastly refuse to admit that 1990 was a long time ago.