''Who am I?' and 'Why am I here?' are questions we all ask at one time or another. We search for meaning and belonging, and we want to have a purpose for our lives. This documentary walks you through four predictable stages of life that help sort out and process your quest for significance. Noted author Os Guinness reveals how various belief systems answer these questions, and puts worldviews under the microscope to discern what is true and significant about life.'