Holmes and Watson travel to London to help track down an old mentor and investigate an unsolved mystery. Rhys Ifans guest stars.
Did You Know?
The address Sherlock calls Watson to, 360 Purcell St, is not in fact an abandoned theatre, but a council estate. See more
Carrier pigeons, or more correctly homing pigeons, only fly home. You cannot attach a return message to the leg of one after it arrives home and then let it go expecting it to take the message back - yet this is what Holmes says he saw. See more
Uh, Miss, no offense but could you give him a little bit of space? Because he's doing that thing. You know, when's on to something, he does that-that thing...
Dr. Joan Watson
Yes, I know that thing!
Written by Ashley Spencer Timothy Bates, Simon Michael Glenister, Rebecca Sarah Jacobs, Michael Lewis Lindsay, Martin Bradley Smith, Philip David Winter
Performed by Tunng See more