Harvard University student Tom Brown (William Haines) is a handsome, athletic, and carefree young man who has a reputation as a Don Juan among the ladies. Although he is popular on campus, he finds himself at odds with Bob McAndrew (Ralph Bushman), a studious, reserved boy who becomes his chief rival for the affections of beautiful Mary Abbott (Mary Brian), a professor's daughter. Tom rooms with Jim Doolittle (Jack Pickford), an awkward weakling but goodhearted backwoods youth who idolizes him. The brash and cocky Brown easily wins over his dormitory mates, but refuses to let them ostracize Jim.