When two weddings are accidentally scheduled for the same day and location, each of the wedding guests is faced with the challenge of preserving their family’s special moment while making the most of the limited space provided. In a hilarious battle of determination and courage, the bride’s father (Will Ferrell) and the other bride’s sister (Reese Witherspoon) chaotically clash as they stop at nothing to maintain an unforgettable celebration for their loved ones.