Could a simple country nurse possibly have found a treatment for polio when educated doctors have failed? This is the remarkable true story of Elizabeth Kenny (Rosalind Russell), a nurse far out in the Australian bush, who follows her instincts to treat small children inflicted with the dreaded crippling disease. Working with only her hands, Kenny applies a therapy that, miraculously, allows once-hopelessly-crippled children to rise to their feet and walk again. Instead of applauding her treatment, however, the medical community, led by the inflexible Dr. Brack (Philip Merivale), ridicules Kenny's unorthodox practice and wields its power to stop her from using it. Undaunted, Kenny forsakes all, even romance, to continue her inspirational fight to save children's lives.