A viral epidemic has wiped out 99% of the world's population leaving scientist Heather Morgan to fight off thieves and scrounge for food and shelter near Denver, Colorado. When Heather befriends the young, naïve Jodi, she learns that a biotech company in San Francisco is rumored to have created a vaccine. Together, the women trek by foot to find the lab.
After suffering a near-fatal attack, Heather and Jodi find a safe haven on a farm with two young men, Cam and Elliot. Their security is short-lived, however, when irrevocable consequences threaten Heather's mission. Will Heather be able to overcome loss and tragedy to find the vaccine or will she let sorrow overtake her and turn back? How many lives are worth the risk for a hope that rests in only a rumor?