Season 1 (2010 - 2010)
Dr John Watson returns from service in Afghanistan and finds himself drawn inexorably into the world of the brilliant but baffling 'consulting detective', Sherlock Holmes.
Season 2 (2012 - 2012)
Sherlock and John Watson return in a contemporary take on Conan Doyle's iconic adventures.
Season 4 (2017 - 2017)
Sherlock and Dr John Watson return in Steven Moffat and Mark Gatiss's contemporary take on Conan Doyle's most iconic adventures.