A corrupt Arabian government is selling opium directly to wholesalers, and secret agent John Drake hopes to halt their trade. He visits the country and strategically befriends Captain Aldrich, an Englishman and minor official at the Ministry of Health. Drake coaxes Aldrich into losing a large sum of money, then offers help in exchange for a list of opium buyers. Aldrich believes he is doing the right thing and helps Drake to the records. But while photographing the necessary information, Drake’s camera is confiscated by the authorities.