The beginning of the new century was marked by a lot of trouble, but it seems that this does not apply to the main characters. Sherlock settled in Sussex, where he began to breed bees. Watson is married and is practicing medicine. Mrs. Hudson moved and set up the Holmes Museum in Baker Street. And even Inspector Lestrade retired. But the twentieth century threatens disaster. Criminals and problems are everywhere, which forces the great detective to abandon the apiary and again defend Europe. Saving the mint from falling, preventing a huge scandal in the diplomatic field and even eliminating the potential for military espionage - are these not the case for Sherlock Holmes? It all starts with the maturation of World War II. At stake are not only the independence of the country and millions of lives, but also the pride of the detective. The first case, which the detective takes, is connected with an English engineer with one finger engaged in repairing the secret press, because of which he almost lost his life.