Donna Martin is back in town! The return of the original “Beverly Hills 90210″ character to the famous zip code is topped with a guest starring performance by “Juno” writer Diablo Cody who plays herself. Both Tori Spelling and Cody will appear on the “90210” episode of “Okaeri Donna!”, airing April 14.

Kelly and Silver are surprised when Donna shows up at their door, straight off a plane from Japan. Annie and Dixon decide to spend their spring break on a road trip to visit someone from Dixon’s past, while Ethan decides to step out of his bubble and volunteer with Habitat for Humanity.