The mastermind behind a ubiquitous spy operation learns of a dangerous romance between a Russian lady in his employ and a dashing agent from the government's secret service.
The film focuses on the naval warfare around the Battle of Coronel and Battle of the Falkland Islands during the First World War. It was the last in a successful series of documentary reconstructions of First World War battles by British Instructional Films made between 1921 and 1927.
A man betrays his best friend, a member of a terrorist organisation, to the authorities and is then pursued by the other members of the organisation.