A British mining engineer's mundane holiday in London takes a thrilling turn when a secret agent entrusts him a coded notebook, leading to a desperate chase from German agents and British authorities as he tries to decipher the Roman numerals code and uncover the truth about the impending start of World War I.
The 39 Steps
A London vacation for a mining engineer takes an unexpected turn when a secret agent hands him a cryptic notebook, sending him on a treacherous journey.
