90210 Spoiler: Someone Will Get Shocking News
09/01/2009 AT 12:00 AM EDT
PEOPLE has learned exclusively that in the fifth episode of the second season, airing Oct. 6, Silver (Jessica Stroup) learns that her mom, Jackie Taylor (Ann Gillespie), has gone to the doctor and is diagnosed with breast cancer. As the season progresses, Silver and her half-sister Kelly (Jennie Garth) will deal with each other and their fractured relationship with their mother during her medical crisis.
Season 2 of 90210 premieres Sept. 8 (8 p.m. EST) on the CW.
Tonya Wise/London Ent/Splash News Online; Jim Smea