Barbara Tarbox was the most powerful anti-smoking weapon in Canada. At the age of 41, she was diagnosed with lung cancer. That’s when Tarbox, who smoked for 30 years, decided she had a mission. With time running out and tumors wracking her body, Barbara spoke to more than 50,000 high school children. The force of her personality and the power of her message changed many lives. In a postcript taped after her funeral, friends and family share their thoughts about this remarkable woman and her legacy.