Jess and Max are ready to call it quits on the out-of-control planning only three days before their wedding. They pay a visit to Billie, the owner of a wedding donation company that specializes in providing unused wedding elements to individuals in need. However, when Max's brother Charlie will go to any length to keep them together, he enlists the help of Billie to ensure that this meant-to-be couple marries once and for all.