Emmy Ferguson is a 10-year old who learns that, after a long bout with leukemia, today is probably her last day on earth. Chris Ryan is a 35 year old drug addict who is determined to make this his last day. And Adonna Frost, suffering from advanced breast cancer, has made a similar decision about the end of her life. But as Emmy embarks on a strange journey, the lives of these three strangers are changed forever.