Lou Gehrig is a young Columbia University student whose old-fashioned mother wants him to study hard and become an engineer, but the young man has a gift for baseball. A sportswriter befriends Gehrig and persuades a scout to come see him play. When his mother gets sick, Gehrig signs with the team he has always revered, the New York Yankees to pay for the hospital bills. With the help of his father, he endeavors to keep his career change a secret from his mother.