The Poison Belt - Stage 5

The Poison Belt: After returning from the journey to South America and finding the lost world, Professor Challenger continues with his studies and makes a disturbing observation about the life on Earth. He immediately sends an invitation to his friends from the expedition. His research reveals that something is treating people worldwide. Challenger requests from his friends to bring oxygen tube with them. But what is the danger? Does anyone survive or does it end all the life on Earth?