Everyone is still reacting to the surprise engagement of Julie and Caleb. Kirsten is shocked, and a little burdened to find she‘s been asked to be Julie‘s Maid of Honour. Kirsten and Marissa end up in charge of throwing Julie‘s wedding shower, and Marissa invites an unwanted guest. Theresa calls Sandy for help and tries to avoid Ryan. Jimmy and Hailey continue their romance, and Seth awkwardly meets Summer‘s father.