In a small village in England, the Droppington family lives an apparently normal life until one day they receive a mysterious letter revealing their royal lineage. The news, which bursts unexpectedly into their comfortable family routine, drives the father, Arthur Droppington, a good-hearted but clumsy man, to wish for something greater for his family. Alongside his wife, the eccentric yet loving Mabel, and their two children, the dreamer Henry and the practical Edith, they decide to embark on a journey to discover their heritage.
As the family investigates their history, they encounter a web of peculiar characters who have been estranged from the family tree for years, including a distant cousin who is a mad astronomer and an eccentric aunt who lives with a community of bohemian artists. Each encounter turns into a comedy of errors, where misunderstandings and absurd situations lead the family to question what it truly means to belong and have roots.
Amidst laughter, unexpected twists, and a lot of confusion, the Droppingtons begin to understand that true wealth does not lie in blue blood, but in the bonds formed along the way. In the end, they discover that being part of a family is more than a title; it is about embracing everyone, from the most peculiar to the most ordinary, and celebrating the craziness that unites them. A heartfelt ode to family love filled with hilarity and warmth!