When two weddings are coincidentally scheduled for the same day and location, each wedding guest is challenged to preserve their family’s special moment and make the most of the reduced space it affords. In a hilarious showdown of determination and courage, the father of the bride (Will Ferrell) and the sister of the other bride (Reese Witherspoon) are chaotically pitted against each other as they stop at nothing to throw an unforgettable celebration for their loved ones.