Dr. Holden (Ralph Bellamy) is "The Healer" (the original title) in this 1930s morally uplifting pot-boiler. He is a doctor that has come home to a warm springs to try to heal children from the unnamed crippling disease (polio). He runs a destitute camp for these children, assisted by Evelyn Allen (Karen Morley) who looks upon the Doc as a great man. Jimmy (Mickey Rooney) is a paraplegic kid whom the Doc promises to cure. This little triangle is interrupted by a rich girl Joan Bradshaw (Judith Allen) who cons the good Doc into building a sanitorium for the wealthy with her father's money. Doc is momentarily swayed, but comes to his senses just as a forest fire threatens his original cabins around the warm spring. His treatment of Jimmy pays off as Jimmy rides a bicycle to save the day. Doc realizes that his true love is Evelyn, not the self-interested Joan.