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.
These two are helping
with the investigation.
Die beiden helfen bei den Ermittlungen.
Ellos nos están ayudando
con la investigación.
Ils participent à l’enquête.
Esses dois estão ajudando
com a investigação.
Они содействуют расследованию.