A government program poisons millions. An immune grandfather-granddaughter duo survive, hunted by ruthless scalpers and an official determined to save his son, leading to a fight for survival amidst the chaos.

After a government depopulation program poisons the blood of millions, an immune pair of survivors - a crazy old man and his feisty granddaughter - must fight to defend themselves when they are hunted down by vicious blood-draining scalpers and a tyrannical official hellbent on saving his own son.