The world's only consulting detective and the Naval Criminal Investigative Service come together to solve the double murder of a US Marine and a MI6 Agent in Washington DC. With the help of Sherlock's companion, Dr John Watson and the reluctant co-operation of Gibbs and his team, they observe for evidence and solve how Irene Adler, who's supposedly dead, is involved.(CC) Attrib. NonComm. NoDerivs