Marin has second thoughts about her feelings for Jack and invites him to be her wedding date. Patrick and Annie's wedding is threatened by dangerous and unforeseen events. Meanwhile, Jane flies in for their nuptials and has an impulsive reaction when she sees Sam (Ty Olsson) with his date; Mary Alice (Annie Potts) develops a relationship with a very unlikely Elmoian; Dick (Currie Graham) and Celia become way too attached; Sara helps Eric (Nicholas Lea) deal with the fallout of his actions toward his congregation; and Cash (Scott Elrod) returns to Elmo.