Jack Sadelstein, a successful advertising executive in Los Angeles with a beautiful wife and kids, dreads one event each year: the Thanksgiving visit of his twin sister Jill. Jill's neediness and passive-aggressiveness is maddening to Jack, turning his normally tranquil life upside down.

Brady and Boomer, 16-year-old fraternal twins, are typical teens being raised by relatives in Chicago. But when the Royal Secretary to the Throne of the Island of Kinkou, arrives to inform the boys of their lineage, their lives change drastically. Now, Brady and Boomer must relocate and claim the throne as joint Kings of the island.

Reverend Eric Camden and his wife Annie have always had their hands full caring for seven children, not to mention the friends, sweethearts and spouses that continually come and go in the Camden household.