SHERLOCK: S2E2 THE HOUNDS OF BASKERVILLE TRAILER

Sherlock and John find themselves in the wilds of Dartmoor when a traumatised young man named Henry Knight presents them with an irresistibly baffling case - his buried memories reveal the violent death of his father at the jaws of a terrifying and gigantic Hound, and having returned to the site of the killing, he has found fresh footprints. Sherlock and John must navigate the depths of the mysterious Baskerville Research Facility, locals with secrets to hide, and even test their own friendship to di