The gang is en route to visit Shaggy’s uncle Nat, who lives in a colonial mansion in Boston. They meet up with the vacationing Harlem Globetrotters and decide to all visit Uncle Nat together, but encounter ghosts from the revolutionary war on the journey there, who continue to “haunt” them all through the night at Uncle Nat’s house. In the morning, they go out water skiing and scuba diving in the cove, but the relaxation is short-lived; a fire-breathing Nessie lookalike chases them away. Now the gang has two mysteries on their hands, which may be tied together.
