During the Civil War five survivors escape from a prison camp in Richmond, Virginia by hot air balloon and find themselves on an uncharted island in the Pacific. Far from any kind of known civilization, the island is inhabited with carnivorous monsters, bloodthirsty pirates, and mad genius Captain Nemo, who lives on the island for his own secretive ends.

New England, 1886: a creature of unknown origin is destroying ships at sea. It is the job of Professor Pierre Aronnax, a marine expert, and Ned Land, the iron willed sailor, to learn the truth about the monster roaming the seas. In their search, they come across the sophisticated submarine Nautilus, secretly cruising under the ocean, and its charismatic captain Nemo.

A group of children are trying to solve various mysteries during the summer.

A Soviet three-part television miniseries directed by Vasily Levin loosely based on the novels Twenty Thousand Leagues Under the Sea.

The Undersea Adventures of Captain Nemo was a series of five-minute cartoons produced in Canada in the mid-1970s. They told the story of Captain Mark Nemo and his young assistants, Christine and Robbie, in their nuclear-powered submarine, the Nautilus.

The Return of Captain Nemo was a 1978 science fiction TV movie directed by Alex March and Paul Stader, and loosely based on characters and settings from Jules Verne's novel Twenty Thousand Leagues Under the Sea. It was written by six writers including Robert Bloch.

During naval exercises in 1978 Captain Nemo is found in suspended animation aboard his submarine Nautilus beneath the Pacific Ocean. Revived by members of a modern day US Government agency, Nemo is persuaded to rescue United States interests and in so doing battle Professor Cunningham, a typical mad scientist played by Burgess Meredith.

The film was a co-production between Irwin Allen Productions and Warner Bros. Television. It was distributed by CBS Television but was also released theatrically as The Amazing Captain Nemo.