In the South American fainforest, the Critter Kids visit an archaeological dig in Mayan ruins. They discover that a priceless jade statue has been stolen.
On a trip to a coral reef in the tropics, the Critter Kids become shipwrecked on mysterious Octopus Island and run afoul of Dr. Yes and a giant octopus.
The Critter Kids travel to a castle in england where they hear of a prince who traded places with a look-alike peasant. But who eventually became king, the prince or the peasant?