Did one party really ruin the whole summer of various 90210 characters, as this episode's title implies?

It certainly seems that way for Liam... and Naomi... and Dixon... and definitely for Annie.

What went down with each of these individuals? Find out now in our 90210 season finale recap!

Here are a few of our favorite 90210 quotes from the episode:

Annie: Screw you, Naomi! Screw all of you! | permalink

Liam: Give me my shirt.
Jen: I forgot how cute teenage boys can be when they're upset. | permalink

Debbie: The problem is, we can't drive anywhere because we're stoned. | permalink

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.