Karl and Marion are endangered when life on the Earthfarm is threatened by a deadly virus and the culprit is the devious LeSage, who has her own special plans for the couple.

The citizens of Waterfall City flee for the tenuous safety of Earthfarm, abandoning their city to the dangerous Outsiders - who discover the key to Dinotopias future and threaten its survival.

Ideas of progress turn the peaceful city into a congested metropolis. Could extinction follow? Not with the blessed event that occurs - the birth of a dinosaur, symbolizing Dinotopia's enduring civilization.

A hunter discovers the elixir of youth on Dinotopia - only to realize, along with LeSage, the price for getting younger. David becomes the ultimate defender of Dinotopia when he takes on a bullish Outsider.

While on a beach vacation, a human boy and a girl find themselves stranded on an island where dinosaurs still exist. They must navigate the dangers of the island and work together to find the Ruby Sunstone, a powerful artifact that can protect Dinotopia.

When a shipwreck is found on the shores of Dinotopia, Karl uses his newly discovered radio to make contact with the drifting survivors. But what will happen if that bridge between two worlds is crossed?

When Karl is bitten by a venomous giant mosquito, his only chance for survival cannot be found on Dinotopia. David and LeSage must embark upon an incredible journey through a secret portal to the outside world but what will be the price ?.