When two weddings coincidentally take place on the same day in the same place, each wedding party faces the task of preserving a special moment of their family, making maximum use of the unforeseen space. In a cheerful battle of determination and seriousness, the father of the bride (Will Ferrell) and the sister of the second bride (Reese Witherspoon) chaotically fight each other, stopping at nothing to arrange an unforgettable holiday for their loved ones. .