7.00/10 1960-10-22 30 minutes.HDPremiere show, "Nest of Vipers," sees Smith called in by Superintendent Mercer (John Longden) when a perfectly forged bank note and a printing press are found at the scene of the murder. Smith's investigation takes him to Tangiers where he breaks up a ring of international counterfeiters.Year: 1960Studio: BBC One, NBCCountry: United Kingdom