Four couples seal their vows and embark on their first year of marriage. Kathryn and John, who have only known each other for a year, unite their traditional families in a big fat Greek wedding. Kathryn leaves her independent life in New York City to move into John's suburban Long Island home. Cultures clash as Tina and Tarz wed in a lavish Bollywood-themed wedding in South Carolina. Determined to overcome their family histories of divorce and neglect, Blair and Jeff make their love official by signing domestic partnership papers. Blair still dreams of his fantasy wedding and has bigger plans for an upcoming over-the-top commitment celebration. Kim and Alaska rev up their fast-paced lives after a wild seven-year courtship and rejoice in their new status – but Kim's vision of a slim bridal party causes serious beef with her closest not-so-skinny friends.