It's been seven years since we were first introduced to Gnomeo and Juliet, and the couple are now happily living in London - that is, until the gnome-nappings begin. 

Here is the trailer for Sherlock Gnomes, the long-in-the-works sequel that sees the introduction of the legendary detective Sherlock Gnomes (Johnny Depp) when friends and family turn up missing. The sworn protector of London’s garden gnomes arrives with his sidekick Watson (Chiwetel Ejiofor) to investigate the case. The mystery leads the garden partiers on a rollicking adventure where they will meet all new ornaments and explore an undiscovered side of the city.

Michael Caine, Maggie Smith, Stephen Merchant and Ozzy Osbourne reprise their voice roles from the original pic. New to the franchise, along with Depp and Ejiofor, is Mary J. Blige. Elton John and his longtime lyricist Bernie Taupin contributed original music for the toon, which is directed by Kung Fu Panda co-helmer John Stevenson from a script by Ben Zazove.