"Scooby-Doo, When Are You?"
*When a test of Dr. Albrick Einstone’s time machine goes awry, Scooby and the gang find themselves the unexpected guests of everyone’s favorite modern Stone Age family, the Flintstones! And they’ve arrived just in the nick of time – because Bedrock is being plagued by that notorious spook, The Phantom of the Operrock! *Source: dccomics.com