Rich devises a brilliant business idea - establishing their own radio station! Gabe quickly becomes a star DJ, but what will the locals think if they discover he's a ghost?

Rich comes up with a truly brilliant business idea for the castle when he enlists the help of the gang to establish their own radio station. But his plans are almost undone thanks to an unexpected visitor and his best friend - who almost destroy the station before it can get going.

Surprisingly, Gabe launches the station into an overnight success - but what will the locals do if they discover the star turn on Bogmoor FM is actually a ghost? How can the kids keep this a secret while trying to put the castle on the map.