Professor Challenger gives them the final instructions. In the trip they are accompanied by two guides. Challenger and Professor Summerlee confront each other.
Of course, my dear Edward.
You have no idea of anything.
Is not true!
One night, while they explore the base of the plateau, men roast a pig-like animal for their dinner, when from the sky a large animal hunts the animal.
it's true, you are right.
Now you have to say that this is a pterodactyl.
They leave the plateau, fight against the monkeys and join the Accala tribe. They return to London with a report that nobody believes, but Challenger produces a live pterodactyl for all to see. Finally the four men become rich heroes, but ... Edward without Gladys.