Captivated by a vision of beckoning women, a man dives into the ocean, and soon finds himself walking on the ocean floor. After encountering numerous sea creatures, he comes to a giant oyster. When the oyster is opened, a strange adventure begins for the diver.

Two troubled men face their terrible destinies and events of their past as they join together on a mission to find the Holy Grail and thus to save themselves.

The film, a parody of the novel Twenty Thousand Leagues Under the Sea by Jules Verne, follows a fisherman, Yves, who dreams of traveling by submarine to the bottom of the ocean, where he encounters both realistic and fanciful sea creatures, including a chorus of naiads played by dancers from the Théâtre du Châtelet. Méliès's design for the film includes cut-out sea animals patterned after Alphonse de Neuville's illustrations for Verne's novel.

A 12-year old girl - Ekah is inspired by the story of the youngest Noble Peace Prize Winner - Malala Yousafzai's. She is determined to go to school in a village of fisherman where the education of a girl child is considered to be a taboo. Her burning drive and determination to break this old adage gets her embroiled with her father's - Solomon past experience with girl child education.