Matt discusses wedding plans with Eric and his future father-in-law, Rabbi Glass. Matt makes a spontaneous decision that infuriates his father and creates tension between the two families. As all this is going on, Annie tries to plan the perfect rehearsal dinner, but she is having some difficulties. Annie's father and stepmother are flying in for a visit, but they get lost at the airport. Simon is angry when Matt does not choose him to be his best man, and Ruthie gets into an unexpected fight with Robbie. Finally, as Aunt Julie goes into labor, Lucy argues with her boyfriend over moving arrangements.