LOS ANGELES, July 25 — Benedict Cumberbatch is back as Sherlock Holmes in this new trailer that gives us an insight into season four of BBC’s popular mystery series Sherlock.

Cumberbatch and Amanda Abbington joined executive producers Mark Gatiss, Steven Moffat, and Sue Vertue yesterday to debut the new trailer for the hit miniseries which teases that "everything they know will be tested”.

The new look seems to hint at a more action-filled fourth season than past instalments and intoned that "Something’s coming. Maybe it’s Moriarty, maybe it’s not. But something’s coming.”

Guess we’ll just have to wait until 2017 to watch the full episodes.