John Watson, an ex-army doctor injured in the war in Afghanistan is introduced to Sherlock Holmes as a possible flatmate by a mutual friend, sharing rooms at 221B Baker Street, owned by landlady Mrs. Hudson.
John Watson is introduced to Sherlock Holmes as a possible flatmate by a mutual friend. John Watson was sharing rooms at 221B Baker Street.221B Baker Street was owned by landlady Mrs. Hudson. John Watson is an ex-army doctor. This ex-army doctor is injured in the war in Afghanistan.