The gang from Mystery Inc. are the stars of a hit reality TV show about ghost hunting. However, when rival show team GSI (Ghost Scene Investigators) question Mystery Inc's unscientific methods of ghost detection, the challenge is on to see who can debunk the most ghosts! Scooby, Shaggy and the gang will travel cross-country visiting spooky locations and unmasking classic ghosts. Are their old-fashioned methods up to the challenge?