Professor Challenger is an explorer. He went to the Amazon and found the Lost World but no one believed him.
Edward Malone writes for a newspaper. He wants to marry Gladys. She wants to marry an adventurer. Edward Malone is sent to meet Professor Challenger.
Edward Malone goes on an adventure with Professor Challenger, Professor Summerlee and Lord Roxton. He wants to impress Gladys. They set off to find the Lost World. They go in search of dinosaurs. Professor Summerlee wants to prove that the Lost World doesn’t exist and that Professor Challenger is a liar. The others want to show the world that dinosaurs are still alive deep in the Amazon rainforest.