In the climactic final scenes, the Martians have been wreaking havoc on Earth, obliterating cities and decimating humanity with their advanced weaponry. However, scientists and military forces manage to discover a vulnerability in the alien invaders. It is revealed that the Martians cannot tolerate Earths bacteria and microorganisms, as they have no immunity to them.
Armed with this knowledge, the military develops a plan to exploit the Martians vulnerability. They distribute a serum or bacterium across the Earths atmosphere, enabling it to be carried by the wind. As the Martians continue their onslaught, the air becomes filled with the deadly bacteria, which the aliens unknowingly inhale and succumb to.The Martian war machines, unable to combat the microscopic threat, begin to collapse and disintegrate. One by one, the towering tripods fall, their reign of terror coming to an end. The film concludes with the triumph of humanity as the Martians are defeated and their invasion is thwarted.