Mystery Inc. has cracked the case to top all cases! They’ve tracked down Coco Diablo, the head of the notorious costume crime syndicate that colludes The Black Knight, Space Kook and the Ghost Diver. With Coco and her kitty in prison, Mystery Inc. thinks that they can finally enjoy a break. Wrong! Suddenly, menacing doppelgänger ghosts of the Scooby crew and favorite classic foes show up in Coolsville to threaten Halloween. Now it’s up to the meddling kids – and their unlikely new partner Coco – to unmask the latest scoundrel and save Halloween! For Shaggy and Scooby-Doo, with trick-or-treating on the line – this time it’s personal! The Mystery Unravels on Digital October 4th & DVD October 18th SUBSCRIBE to Warner Bros. Entertainment: http://bit.ly/32v18jf Connect with Warner Bros. Entertainment Online: Follow Warner Bros. Entertainment INSTAGRAM: https://www.instagram.com/warnerbrosentertainment/ Like Warner Bros. Entertainment on FACEBOOK: https://www.facebook.com/warnerbrosent/ Follow Warner Bros. Entertainment TWITTER: https://twitter.com/WBHomeEnt About Warner Bros. Entertainment: At Warner Bros. Entertainment, we believe in the power of story. From classics to contemporary masterpieces, explore and watch a library full of extraordinary, stirring, and provocative entertainment that goes beyond the big screen. Subscribe to discover new favorites from the studio that brought you Friends, JOKER, the Conjuring Universe, and The Wizarding World of Harry Potter™. Trick or Treat Scooby-Doo | Go Time | Warner Bros. Entertainment https://youtu.be/-EiwaByy-6g Warner Bros. Entertainment https://www.youtube.com/user/WarnerBrosOnline