The Partridge kids are vacationing at Peaceful Cover, but it's anything but peaceful! The ghost of Captain Ahab and Moby Dick are haunting the old mansion on the cliff and it's up to Goober and the kids to interview them for their magazine
Goober and the gang are aboard an old pirate ship called the Sea Witch for publicity pictures. The Sea Witch is soon set adrift by the salty spirits led by Captain Dunk. They also encounter Dunk's nicer twin brother Dink.
At an amusement park, the haunted house is a little too haunted for The Partridge Kids, Goober and the gang when they find it haunted by the Ghost of Ichabod Ipswich.
Frankenstein's Monster the 3rd tricks Danny and The Partridge Kids into coming to his castle to discuss a singing engagement. Once there, they realize the only thing he wants is Danny's voice for his own!