A culprit is arrested in the Jack the Ripper case which was solved by the Moriartys. Suspecting a frame-up by Arterton, Lestrade asks Sherlock for help in finding evidence that would prove it. Meanwhile, Paterson works to sneak Bonde inside the station.
I am not going to let you turn
an innocent man into a criminal!
Ich lasse nicht zu,
dass ein Unschuldiger angeschwärzt wird!
¡No permitiré que convierta
a un hombre inocente en un criminal!
Não vou deixar que transforme
um inocente em criminoso!