The story begins with the discovery of a bottle containing a message written by Captain Grant, which has been found by a Scottish nobleman, Lord Glenarvan. The message reveals that Captain Grant and his ship, the Britannia, have been shipwrecked somewhere along the 37th parallel. Touched by the plea for help, Lord Glenarvan and his crew embark on a global quest to locate the captain and bring him home.
Mary and Robert, Captain Grant's children, join Lord Glenarvan on his expedition, eager to reunite with their father. The search takes them to various locations across the globe, including South America, Australia, New Zealand, and the Pacific Islands. Along the way, they encounter a diverse cast of characters, face natural disasters, and overcome numerous challenges.
Throughout their journey, the group follows clues left by Captain Grant in the hope of narrowing down his location. They decipher cryptic messages, solve puzzles, and rely on their resourcefulness to overcome obstacles. The narrative is filled with thrilling adventures, such as narrow escapes from danger, encounters with indigenous tribes, and the exploration of uncharted territories.
As the story unfolds, the search for Captain Grant becomes more complex, and the protagonists face unexpected twists and revelations. The novel showcases Jules Verne's signature blend of adventure, scientific knowledge, and imaginative storytelling. It also touches on themes of perseverance, family bonds, and the spirit of exploration.
Verne wrote about space, air, and underwater travel before people invented navigable aircraft and practical submarines and devised any means of spacecraft. He ranks behind Dame Agatha Mary Clarissa Christie as the second most translated author of all time. People made his prominent films. People often refer to Verne alongside Herbert George Wells as the "father of science fiction."