On March 31, 90210 FINALLY returns with a new episode.

We've uncovered a few plot details for that installment, titled "The Bad & the Trusted," along with a few other upcoming episodes:

March 31 Rhonda kisses Ethan; Naomi spends a crazy night with Liam.

April 7 Jason Priestley directs. Jennie Garth and Ann Gillespie guest star, as Silver faces emotional trouble.

April 14 Tori Spelling returns as Donna Martin! Oscar-winning writer Diablo Cody guest stars as herself.

April 21 Rob Estes directs. Will Donna move back to Beverly Hills?

April 28 Sara Foster guest stars as Naomi's sister.

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