Europe in the year 2025: After a pandemic has wiped out almost the entire world population, only a few men remain, roaming the streets and committing heinous acts of violence with impunity. The only hope of saving humanity lies with a cowboy named Dog and Mia, the last pregnant woman in the world. Together they must embark on a perilous journey through devastated areas to reach a laboratory where a group of scientists have apparently developed a cure for the deadly virus.