The film is set in California, where Jacquie Liddle and Tyler are planning their perfect Christmas wedding in a tropical paradise. However, things quickly become chaotic as Jacquie's large and loud family descends upon the resort where the wedding will be held. Jacquie's father, who is a bit of a troublemaker, causes a scene at the rehearsal dinner, while her mother struggles to keep everyone under control.
Meanwhile, the wedding planner whom Jacquie hired is not as helpful as expected and eventually quits due to family drama. Jacquie is left to improvise and tries to take matters into her own hands, but things continue to go awry. As the wedding ceremony draws near, Jacquie's sister shows up unexpectedly, throwing another wrench into the plans.
Despite the chaos and mishaps leading up to the wedding, Jacquie and Tyler remain determined to tie the knot. With the help of their families, they pull off a beautiful and unforgettable Christmas wedding that brings everyone together. Throughout the film there are also various sweet and funny moments that capture the spirit of the holidays.
