Shannon is excited about her annual Christmas party, but holiday cheer quickly turns into holiday jeer when the ladies get together. Meanwhile, Vicki mourns Briana's move to Oklahoma and Tamra gets a dose of reality when she gets some shocking news about her son.

While confiding in Tamra, Shannon receives a text from David that rumors are swirling around the OC about their marriage. Shannon heads to Heather's house to find out the source of the rumors, only to be turned away. Lizzie is caught in the middle of Shannon and Heather's argument and left to decide who to believe. Meanwhile, Vicki and Brooks head to Puerto Vallarta for a much needed vacation and Tamra orders a robotic baby to show Eddie what it's like to have a newborn.