21:15Sherlock HolmesThe Memoirs of Sherlock Holmes - Series 2Episode 4: The Naval TreatyBBC Radio 4 Extra Duration: 45 minutes Tue 20th Apr 2010, 21:15 on BBC Radio 7Watson's old school chum faces ruin if a secret government document can't be found. Stars Clive Merrison and Michael Williams.GenresDramaCrimeBrandSherlock HolmesSeriesSherlock Holmes: The Memoirs of Sherlock Holmes - Series 2 Source: BBC Online