Follow the crazy adventures of the Marshall family, Rick, Will and Holly as they fall through a "time vortex", reappearing in an alternate universe... a strange place laden with danger and mystery; a fantastic ruined city populated by frightening insect-like lizard creatures; a primeval jungle where dinosaurs stalk a tiny family of humanoid monkey men; and an underground network of deep caves and tunnels, all the while trying to solve the mystery of the "Land of the lost" and find their way back home!