Ark II in the Land of the Lost

From Introduction: In the world of the 25th Century, only a handful of scientists remain -- those who have vowed to rebuild what has been destroyed. Their achievement: the Ark II, a mobile storehouse of scientific knowledge crewed by highly-trained young people. Their mission: to explore Altrusia -- the mysterious "Land of the Lost" beyond the dimensional portal -- and bring the hope of a new future to humanity.