Robbie and Katie pick a wedding date two weeks off. Katie's sorority sisters decide to do some private investigating on their own. Prospective groom Robbie then undergoes the complete once-over by his fiancee's family and runs the gamut of numerous cousins, aunts and a crotchety grandmother.

The day before her wedding Katie Miller feels she faces complete disaster. When Robbie tries to console her, she flares up at him and after a short argument, the pair declare the wedding is off. Of course, Grandma Collins thinks otherwise.

Early on his wedding day, Robbie Douglas and his family are peacefully oversleeping. They awaken just in time and scramble madly to get ready as Robbie and Katie are soon married amid traditional confusion and tears. The lost family dog, Tramp, returns in time to join the family in the front pew.