As an intern in the accident room of the local hospital, Jimmy Kildare cannot accept any money for his work. Circumstances force him to perform emergency operations while he is in town on and for local toughs. They try to pay him but he always refuses. Then, he learns that his mentor, Dr. Fearson, is being threatened for not paying his gambling debts. Kildare is called to perform another secret and dangerous operation. Will he finally accept payment and save his mentor?