Next week's 90210 is a must-see.
Donna Martin returns to her former zip code, while Academy Award-winning screenwriter Diablo Cody guest stars on "Okaeri, Donna!"
Click on the photos below for an early look at images from the hour:
We've also uncovered a couple clips from the episode. Follow this article's jump to view them...
[video url="/videos/omg-donna/" title="OMG! Donna!"] [/video]
[video url="/videos/ethan-meets-liam/" title="Ethan Meets Liam"] [/video]