Synopsis

 Eric Thompson, a young man, has been alone for over two years. His only company is a drawn picture of his best friend Anthony, who Eric talks to like he is still there. His life is one of survival, trying to avoid  the packs of infected that roam the countryside. Eric feels that the lonliness will soon drive him crazy, and he makes daily calls over his radio to the outside world, but  has not gotten any response. He fears that he is the only non-infected person left alive. His dreams are filled with memories of the coming of the virus that claimed more than half the people of the earth. While most of the survivors have become rabid beasts, roaming in packs, and killing whatever they can catch, including each other, a few, like Eric are immune.

A request for help comes over the radio from Christy and Dr. Kuhn, who work at a medical facility near Big Sur, and Eric travels down from Washington to help. There he meets Christy, a young woman, and Dr. Kuhn, a fortyish man. The solar panels on the compound are failing and the electrified fence is the only thing that keeps out the infected. Eric agrees to help get them running, even braving the bands of infected in a nearby  town to get supplies necessary for the repair.                                                                                                                                                                                                              Dr. Kuhn has been researching the infected and knows that they are a dying of their disease and cannot reproduce. Christy is a no-nonsense self assured young woman who lived by her wits until she found Dr. Kuhn and agreed to help him with his studies of the infected. Soon, Dr. Kuhn becomes jealous of Eric and tries to kill him after he's repaired the solar panels. His plan is to make Christy the mother of his children and repopulate a world free of the infected, and will not tolerate the competition from a younger man.
With the timely intervention of Christy, Eric escapes Dr Kuhn's trap and both of them leave him and the Medical facility behind. Knowing that the infected will become extinct within twenty five years, they make it their mission to share the news with the other immune and gather them into a sanctuary where they can begin to rebuild the human race.