Kooky adventures await as ventriloquist comedian Jeff Dunham and his young colleague Darci Lynne Farmer join Scooby-Doo and the Mystery Inc gang to stop an evil ventriloquist dummy from sabotaging the ventriloquist contest they're judging.

Cast: Frank Welker, Grey Griffin, Matthew Lillard, Kate Micucci, Jeff Dunham, Darci Lynne Farmer, John DiMaggio