This sequel of My Big Fat Greek Wedding is set in after many years of marriage between Ian and Toula. They have a grown-up daughter named Paris and she will be graduating from school soon. In the process of looking after their daughter and providing for her, Ian and Toula feel that their marriage is not as it was a few years before. They are trying to resolve the issues in their marriage when they are told that Toula’s parents’marriage is not official. Whether Ian and Toula work out the differences between them while planning for another Greek wedding which is bigger and fatter?