When two weddings accidentally coincide on the same day in the same location, each wedding party must preserve their family’s special moment and make the most of unexpected tight spots. In a hilarious battle of determination and grit, the father of the bride (Will Ferrell) and the sister of the other bride (Reese Witherspoon) go head-to-head in a chaotic showdown as they stop at nothing to create an unforgettable celebration for their loved ones.