The episode is presented by Sherlock Holmes and his assistant Watson, who discuss that the ability to reason is the principle difference between men and beasts.
As an example, they present the story of Anthony Monday, a boy who attempts to solve the mystery of a hidden treasure in his hometown.
The Clue According to SHERLOCK HOLMES was the first of five installments of The CBS Children's Mystery Theatre.
The intent of the series was to teach children problem solving skills, specifically, the use of deductive reasoning.
The story is based on part of a four-book series of children's novels featuring the character Anthony Monday, written by John Bellairs.