Yes, it does.

SPOILER ALERT!

The girl looks like Feyre, there's Tamiln, Lucien, Rhy, and Amarantha.

And the whole part where Feyre killed Andres...

Weirdly so... I think I saw a blonde which I can only interpret to be Mor, but I don't think Mor was there in the first (I can be wrong)

And I think I see Tamlin and Feyres wedding, which was definitely not in the first book.

Overall, it was wonderful, and I'd go 'under the mountain' to watch it ;)