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.
It was the Lord of Crime
who solved that case,
Der Napoleon des Verbrechens
löste den Fall.
El Amo del Crimen fue quien
resolvió ese caso,
Le prince du crime a réglé cette affaire,
Foi o Lorde do Crime que
resolveu aquele caso.
То дело разрешил лорд преступности.