Well, it probably stems from the fact that 99% of the populace instantly recognizes Nazis as being evil and bent on dastardly deed that Star Trek Captains are Honor bound to stop.
There's not really anything spoilerish about the episode. But I'll sum up the important bits:
1. Shran saved the day, Archer owes him now(this is some Andorian Life Debt thing I think)
2. Daniels reveals that the Xindi plotline takes place 7 years before the Federation Charter is signed by Humans, Vulcans, Andorians, and Tellarites. Archer signed on behalf of Earth.
3. Somehow, the Aquatic ship that returned Enterprise to Earth traveled back in time some 215~216 years into the past, dropped Enterprise and then left, without realizing that they too were trapped in the past, facing mirror images that were...(sorry about that, wrong show:ha: )
We get left with the following bag:
Enterprise, depsite Trip's best, needs a few months in Spacedock to be her old self, she's in pieces.
Archer's survived the blast and somehow ended up in a Nazi field hospital, he may be a villian next season courtesy the "Amnesia Effect". He's also apparently very badly burned, though he looked like he had ketchup on his forehead.
Trip and Mayweather are decending toward 194x San Francisco in a shuttlepod, they get a signal and when they respond, are fired at by a flight of 3 P-51 "Mustangs"
There is an Alien, possibly many, of some variety helping the Nazis.
