Long ago, a lone explorer, named Arnie Saknussen, made a fantastic descent to the fabled lost kingdom of Atlantis at the Earth’s core. After many centuries, his trail was discovered: first by me, Professor Oliver Lindenbrook, my niece Cindy, student Alec McEwen, our guide Lars, and his duck Gertrude. But we were not alone. The evil Count Saknussen, last descendant of the once noble Saknussen family, had followed us…to claim the center of the Earth for his power-mad schemes. He ordered his brute-like servant, Torg, to destroy our party. But the plan backfired, sealing the entrance forever. And so, for us, began a desperate race to the Earth’s core…to learn the secret of the way back. This is the story of our new journey to the center of the Earth.
Journey to the Center of the Earth is an American science fiction Saturday morning cartoon, consisting of 17 episodes, each running 30 minutes. Produced by Filmation in association with 20th Century Fox, it aired from September 9, 1967 to September 6, 1969 on ABC Saturday Morning. It featured the voice of Ted Knight as Professor Lindenbrook.
It appears to have taken the 1959 film, Journey to the Center of the Earth, as its starting point rather than Jules Verne’s original novel, e.g. including the character of Count Saknussen and Gertrude the duck. However it moved even further away from Verne’s novel than the 1959 film.