Fraternal twins Brady and Boomer are average teenagers until the day a representative from the country of Kinkow arrives at their Chicago high school to inform them that they are, in fact, heirs to the throne of the island nation. The boys relocate to claim their heritage, but it's not as easy as it sounds. The island is home to a number of odd superstitions and customs, which clash with their American upbringing, and a disgruntled cousin tries to thwart their every move, hoping to claim the throne for himself. But Brady eventually leaves the island for good. After learning of that, Boomer intends to follow Brady, but a storm keeps Boomer on Kinkow. That same storm forces inhabitants of a nearby island to move to Kinkow. Among those new inhabitants is Boz, Boomer's long-lost triplet brother. After discovering each other, Boomer and Boz get to know each other and learn to work together.