Dinotopia

A band of marauding Outsiders discovers a lost T-Rex temple and in it an artifact that has the ability to cancel out the protective power of Sunstones. Meanwhile, Karl and his stubborn father concoct a risky new plan to leave the island.

Catrone, the leader of the gang that found the artifact, realizes that he can now control T-Rexes and goes mad with power. Only his deputy, Le Sage, stands up to him. Marion and David must rescue Karl and his father, then save Dinotopia.

Karl and Marion need Le Sage's help to stop Cortez, an Outsider who kills Stegosauruses to perfect his rejuvenation potion. Romana, David's second in command, warns him that Portia, a young cadet he fancies, cheated on her flying test.

A deadly virus spreads among the dinosaurs and the only cure is a plant called Jinca. Le Sage's men steal the cure, so Karl and Marion negotiate for its return. To make Marion jealous, Le Sage agrees, but only if Karl stays with her.

Frank misses cars, so he builds one that runs on methane. It's a hit and everyone wants one, but the town bans them for making noise and polluting. To make his cars legal again, Frank joins the mayoral race but becomes corrupted by power.

A Chasmosaur egg from the hatchery has been replaced with a T-Rex egg. A distraught woman named Iridia claims an Outsider child did it. Le Sage denies it but refuses to cooperate any further. Matriarch Rosemary questions Iridia's story.

Karl's date with Marion doesn't go well. A jolly conservationist named Lok shows him a rare and supposedly magical frog called Wartosa. In an attempt to change the outcome of the date, Karl kisses Wartosa and becomes stuck in a time loop.

An Outsider named Alano bullies David, so he plans to fight him. David's dad, Frank, who misses watching sports, suggests that they set up an actual boxing match. Rosemary agrees, after Le Sage promises she won't rig the fight.

Karl and David find a shipwrecked dog and a boat stocked with cans of cola, burgers and a working radio that fascinates Dinotopians. Karl learns that the crew is still lost at sea, so he tries contacting the rescue party over the radio.

Karl tries to prove that he can be a skybax rider just like David, only to crash land in T-Rex territory. A rescue party goes to war with T-Rexes to find him, but xenophobic locals who think they're alone on the island capture him first.

Karl is bitten by a prehistoric mosquito and falls seriously ill. Since all islanders are immune to its bite, they have no cure. Hoping that modern hospital might help him, Rosemary reveals that there actually is a way off the island.

David contacts the American hospital in Budapest, Hungary. Le Sage sells Karl's baby Chasmosaurus named 26 to the shady head of the local Museum of Natural History to finance her new life in civilization. But there's a catch to her plan.

David must help his Pteranodon skybax. Karl and Frank prepare for their return home. Le Sage reveals her history with Rosemary to distraught Marion in an attempt to turn her into a hellraiser like herself. The show ends on a cliffhanger.