When two weddings are accidentally scheduled for the same day and location, each bridal party is challenged to preserve their family’s special moment while making the most of the unforeseen space. In a hilarious battle of determination and seriousness, the father of the bride (Will Ferrell) and the sister of the other bride (Reese Witherspoon) clash chaotically as they stop at nothing to create an unforgettable celebration for their loved ones.