In desperation, the children of Arkadia broke the law and entered the forbidden Archives, searching for a solution.

Unaware that life continued on the Earth's surface, and hoping to keep their people safe, the elders sealed all records of their past in the underground city's Archives.

They travel in a living turtle type spaceship called Tehrig, along with Spartakus (a mysterious wanderer) and Bic and Bac (a pair of pangolin-like creatures), Arkadia's mascots.

As she was made in the image of the surface dwellers, she has legs, unlike the Arkadians themselves, who somehow lost them some time after the creation of the Tehra.

Bic and Bac: Among the oldest living things in Arkadia, these two happy little animals are the best of friends, and enjoy dancing to their song, the "Flashbic."

Matthew "Matt" (Bob) and Rebecca: Brother and sister, these children from above ground join Arkana and Spartakus on their quest to save Arkadia.

His gauntlet conceals a magic crossbow, dagger, and grappling hook, and is eventually discovered to be made from auricite, which allows it to cause reactions when in close proximity to Arkadian artifacts.

It secretly helped the children of Arkadia gain entry to the records and serves Arkana and her friends as a transport.

Though its computer brain dates back to before the Great Cataclysm and possesses an encyclopedic database, there are large holes in its memory.

It also contains a number of tiny robots called Triggies (Shaggies) that it can mobilize to distract enemies or repair itself.

The only identified member is their leader, Ringnar, who frequently competes with Nasty Max for leadership of the nested worlds' rogues.

They have the group captured and psychologically tested to convince them that they are beings who were caught in the Living Crystal and are suffering "a deformation of time".

After being forced to deny the truth, he was allowed to leave with the group, but at the last moment returned home.

Demosthenes: A famous spokesman, kidnapped by Nasty Max in order to help him learn the art of speaking and thus win election as leader of the Interstrata Pirate Federation.

Later, when the group returns to their own time and place (in the episode "Star Healer"), he contacts them via Tehrig and informs the surprised Arkana and Spartakus that they are his ancestors.

Rainbow: Spartakus's younger brother, he grew up in luxury as the adopted son of the Lanista (trainer of gladiators) of Barkar.

The English version aired on the American cable television network Nickelodeon from 1986 to 1987 and in reruns on early Sunday mornings through 1991.