Season 1

On Remnant Island, a tiny surviving enclave of humanity on the devastated Earth, Conan lives alone with his grandfather until a young girl, Lana, washes up on the shore. Two soldiers of Industria land their hydroplane a…

After Lana is kidnapped by the two soldiers from Industria, Conan fails to rescue her. Conan's grandfather dies from his injuries. After burying his grandfather, Conan builds a boat and sets off to rescue Lana.

Conan arrives at an island where a wild boy, Jimsy, lives. After an initial fight, Conan develops a good friendship with Jimsy. The Baracuda comes to the same island, getting the inhabitants to salvage for plastic. Afte…

Jimsy and Conan sneak onto the ship, but Jimsy gets drunk and alerts the captain of their presence. After the boys are caught, Captain Dice lets Conan and Jimsy stay on the ship if they will take punishment. Jimsy passe…

After the Barracuda arrives in Industria, Conan is thrown in the brig after he assaults Monsley who was visiting the ship. Lepka, the self-serving chief administrator of Industria's High Committee, tries to threaten Lan…

While making their escape, Conan and Lana come upon a plane from the last war that Lepka wants to power with Dr. Lao's solar energy process for his plans of world conquest. They are captured, and Lepka threatens to hurt…

Dyce escapes in the fog. Lepka gets permission to use the gunboat and Falco to pursue Dyce. Conan escapes from jail and sneaks onto the Falco. Jimsy informs Lana that he is a companion of Conan. Dyce meets with Lana and…

Lana escapes and uses a lifeboat to save Conan. The gunboat boards the Barracuda and captures Dyce and his crew. Lana and Conan escape on the lifeboat. While trying to make it to the shore, the gunboat blows up the life…

After crossing the desert, Lana and Conan are discovered by a man named Patch, who works at an Industrian salvage platform where a passenger ship is about to be uplifted from the seabed. After proving his diving skills …

Terit returns to Industria and is given a radio to inform Lepka when Lana meets her grandfather. However, an earthquake hits the desert island; Patch goes down and gets trapped beneath the ship, and Conan rescues him. W…

Returning to the desert island, Conan, Lana and Dr. Lao recover the flying machine Lao used to escape from Industria, but they need to return there to fix it completely. While flying to the city, they find and rescue Dy…

Lana and Lao descend to the Triangle Tower's Core Block to acquire the IC chip they need to repair their flyer. While Dyce and his crew - minus Jimsy, who refuses to abandon Conan - turn tail, Conan frees some prisoners…

Lao drops the children off on the Baracuda and heads back to Industria in order to aid its citizens against the impending cataclysm. The Barracuda proceeds to High Harbor, where the local residents initially meet the sh…

Conan, Jimsy, and Lana go to Windmill Village, High Harbor's industrial district. After taking a brief tour, Conan and Jimsy decide they will go fishing and hunting to earn their daily bread. While fishing, Conan meets …

As they reach the mountain, Conan and Jimsy are attacked and captured by Orlo's anarchist gang. They make a deal that Orlo will forget about his lost pig, if they can prove that they really brought it down by defeating …

Lana has a premonition about an Industrian attack on High Harbor, a message she is sure was sent by her grandfather. To ease her mind, Conan takes her to Tito's village, where Jimsy has become a pig herder, and he also …

Conan and Jimsy, who have escaped Orlo's attempt on their lives, scout out the Industrian ship, while Lana warns the village about the incursion. Orlo's men try to fight the invaders but are defeated. After rescuing Ter…

Conan saves Lana from Industria's soldiers but gets knocked out; Lana manages to hide him before she gets captured and taken aboard the gunboat. Industria occupies High Harbor, and Orlo is installed as a puppet governor…

With the gunboat gone, Monsley decides to repair the Barracuda and use it in its place, while Orlo's gang is sent out to find Conan. Conan and Gil plan to blow up the Barracuda; Dyce, while getting away from the Industr…

The village chief lets the soldiers join their community. Conan decides to return to Industria using an old seaplane left by Dr. Lao in the fish preserve cave. Together with Jimsy, Monsley, Lana as a last-minute joiner,…

Conan and Monsley crash into Industria and are captured. Under pursuit, Lana, Dyce, and Jimsy find a way into the underground barracks of Industria's lower-class citizenry. They eventually come across Luke and his frien…

Conan descends to the residential area to rescue Lana. After overhearing Lepka's intentions to flood the caverns, he attempts to defuse the bombs used to create the flooding breach, but is unsuccessful. Lana gives herse…

Conan continues going up the tower to confront Lepka, who attempts to flee via a flying machine, with Lana as his hostage. Conan cripples the vessel and saves Lana, while Lepka apparently perishes aboard the crashing ma…

As new earthquakes begin to herald Industria's incoming destruction, Lepka, who has survived the crash of his flyer, and a troop of loyalists secretly channel some solar power underground to charge up the Giganto, a gia…

Evading Lepka's attempts to eliminate them, Conan, Jimsy, and Dyce start inflicting critical damage to the Giganto. While Dyce and Jimsy eventually end up getting jettisoned inside the tail rudder, Conan confronts Lepka…

On its way to High Harbor, the passenger ship recovers Conan, Dyce and Jimsy from the sea; and after asking Conan to look after Lana, Dr. Lao dies contently. Sometime later, the old and new inhabitants of High Harbor co…