When Belgian scientist Bertram Hammonds arrives in the Lost World to drill for crude oil, Professors Challenger and Summerlee return to the Lost World plateau.When Belgian scientist Bertram Hammonds arrives in the Lost World to drill for crude oil, Professors Challenger and Summerlee return to the Lost World plateau.When Belgian scientist Bertram Hammonds arrives in the Lost World to drill for crude oil, Professors Challenger and Summerlee return to the Lost World plateau.