The first scene opens with a letter of arrival from Sherlock Holmes' niece, Angie Islington, a young 12-year-old noble girl who loves to investigate cases.

One day, she stumbles upon a case of robbery which involves the Queen of the United Kingdom's ring that had gone missing during a garden party.

Landmarks such as the Big Ben is present in the story giving an insight of the foreign world of English history.

Inspector Jackson is never fond of Angie as he constantly feel threatened by the fact that the 12-year-old girl is much sharper and intelligent, eventually taking his spotlight away from him.

[2] The stories were framed by live-action segments featuring actors Michael Evans and Bernard Fox playing the roles of Sherlock Holmes and John Watson.