The movie begins--apparently in Hawaii since the rest of the movie is set there--with Miriam's first husband proposing very publicly at an event with Hawaiian dancers and entertainers.
Miriam's story is told through animation. She had Lily, but her first husband did something wrong and she was single. Miriam tried again with a second husband and had Twinny. Again, something happened and she was single again. With husband no. 3 she had Hoku. And something happened. Somewhere along the line Miriam started her wedding planning business Tying the Knot.
In the present, Lily is back in Hawaii for a wedding her mother and sisters are planning. She lives on the mainland, and her boyfriend wants to marry her but she doesn't believe in marriage.
Lily doesn't want to work for the business, but she happens to be around when Tina has a crisis, and Lily solves the problem (to the dismay of another couple who now have to find another venue). Lily reluctantly agrees to stay around and help with this wedding. Twinny, who has a daughter already, is very pregnant and there are signs she and Roy aren't getting along, but she continues to work. Hoku suspects Roy of cheating. And the business may be in trouble.
In high school, Lily dated Kai. Kai is now a science teacher and Lily and Kai meet at what appears to be a park, where Kai is teaching kids. Lily doesn't know Kai is dating Hoku.
So will Hoku's marriage survive? Will the business survive? Will Lily find out who she really belongs with?
