Steve Mazan's someday was to perform on The Late Show with David Letterman. In his early thirties Steve was diagnosed with an incurable form of cancer that spread to his liver. Doctors told him he might have only five years left to live. So Steve did something strange: he started living. In a literal race against time, he decided to chase that childhood dream and turn someday into today--he would perform his act live on The Late Show with David Letterman . . . even if it killed him. With his confidence in a rut and his healthcare bills mounting, Steve finds himself filing for bankruptcy, receiving rejection after rejection, battling death, and questioning his dream.