Back at the base, it is revealed that the researchers had suspected and prepared for the comet's effects, but inadvertently left the ventilation system open and the fans running during the comet's passage. This allowed the deadly dust to permeate their base. Reggie, who has become suspicious, escapes and discovers that the dying scientists have hunted down and rendered healthy survivors brain-dead. They harvest their untainted blood to keep the disease at bay while they desperately search for a cure. Reggie saves a young boy and a girl before they are processed, then unplugs the other victims from their life support machines. Sam and Hector arrive and rescue the trio and blow up the scientists.