When two weddings are accidentally booked on the same day at the same venue, each bridal party is challenged to preserve their family’s special moment while making the most of the unexpectedly tight space. In a hilarious battle of determination and courage, the father of the bride (Will Ferrell) and the sister of the other bride (Reese Witherspoon) chaotically go head-to-head while stopping at nothing to organize an unforgettable celebration for their loved ones.