|Genres||:||Crime, Drama, Mystery|
Something terrible has happened to Henry Knight; Sherlock and John investigate the truth about the monstrous creature which apparently killed their client's father. A hound from hell? What seems like fantasy in Baker Street is a very different prospect in the ultra-secret army base that looms over Dartmoor.
|Casts||:||Benedict Cumberbatch, Martin Freeman, Rupert Graves, Vinette Robinson, Mark Gatiss, Una Stubbs, Louise Brealey, Andrew Scott, Tanya Moodie, Jonathan Aris, Lara Pulver|