It's Ben Baxter's 11th birthday, and he is particularly thrilled by one of his presents. An aunt has given him The Junior Detective Manual by Ricky Barton. He dips into it and decides he would definitely like to become a detective. His pal Johnny agrees to help. They decide: what could be easier than becoming store detectives? They enter a large store and start looking for possible thieves, catching the eye of the resident store detective who is convinced...