Sherlock Holmes - Stolen Plans

A superweapon in the hands of criminals could change the world, and it looks like Sherlock Holmes is the only one who can stop it. Someone stole the secret plans for the Bruce-Partington submarine. The government, the military and his brother Mycroft are hoping to find out who he was. Can the genius detective untangle the web of mystery and uncover the cunning thieves before something terrible happens?