"Episode #6: The Case of the SeaWorld Adventure
The only full-length movie that came from the series. The girls' parents work at Sea World as over-worked dolphin trainers. One day, the girls run into a dead body in the woods that eventually leads them and their parents to a cruise ship while trying to solve the rigged mystery. The boss of the girls' parents had planted evidence to get them all on the cruise, so they could take a much-needed family vacation. "