Mickey Rooney reprises one of his most famous roles in his first film back from serving in World War II. Andy Hardy (Rooney) returns home from the service to his loving family with the intention of going to college, where he meets and falls in love with co-ed Kay Wilson (Bonita Granville). When she decides to wed another man, Hardy is heartbroken and contemplates running to South America to make is fortune. After a talk with his father, Judge Hardy (Lewis Stone), Andy decides to stay and finds his luck changes when he meets another girl, a foreign exchange student from South America.