Sarah, Amy and Jodie's made-up annual holiday, "D-Day," celebrates a major moment from Beverly Hills, 90210. Jodie clings to every aspect of the tradition, despite Coleen's absence. Meanwhile, Amy attempts to use the holiday as a day of respite from her family and Sarah worries she's too old to get back into the dating scene.

Amy learns that's Coleen's old cell phone number has been given to someone else and goes to great lengths to get it back. Meanwhile, Sarah continues to date, but is quickly reminded that Brian needs help setting up for Lila's first birthday party. Then, Jodie helps Matt organize his bedroom and they get closer than ever.