MI6's new Quartermaster may well turn out to be Bond's most challenging mission to date.

James Bond and John Watson are shocked to discover that Q is the youngest Holmes brother. Egos clash and unexpected emotions surface when Sherlock, John, James and Q antagonise each other in the pursuit of the ever-elusive Moriarty. (00Q/Johnlock). Post 'Skyfall' & 'His last Vow'.