College drop-in Hank, an unregistered student who's hungry for learning, gets the help of Professor McKillup in his plots to attend classes in place of absent students.
Hank transforms a personality-challenged egghead into the most sought-after man on campus.
Hank tries to sabotage his own campaign when he is nominated for campus president, since winning would expose his "drop-in" status.
In his latest subterfuge, Hank disguises himself as Sam Lightfoot, a speedy Native American runner.
Hank is temporarily disillusioned by the seemingly unethical conduct of his faculty friend.
Hank faces bankruptcy when a professional food service arrives on campus.
Hank arranges a surprise testimonial dinner for Western State's frustrated athletic director.
Hank encounters girl problems when he assumes the identity of a pre-med student.
Hank helps keep an honor student from dropping out of school by getting him a scholarship after the student's hidden athletic talents are uncovered.
Hank makes a mockery of a private detective who was hired by Dean Royal to ferret out unregistered students.
Dean Royal misinterprets Hank's invitation to his daughter as being a proposal to elope.
Disguised as an absent music student, Hank composes a winning song for Professor Wagner.
Hank solves the "three's a crowd" problem by transforming an unsophisticated babysitter into a campus beauty contest winner.
Hank and his disguises cause Dean Royal to think that he is having hallucinations.
Hank once again outwits Dean Royal and thwarts the registrar's campaign to catch "drop-in" students.
Hank contributes to the stadium fund, but his generosity nearly exposes his "drop-in" status at Western State.
Hank gets unexpected help when a loan shark plans to take his truck as interest.
Guardianship of Tina is in jeopardy until Hank's friends come to his aid.
Hank is able to convince a coach that he is a descendant of Italian nobility.
In an attempt to help Coach Weiss keep his job, Hank helps recruit a star athlete to attend Western State.
A Russian exchange student is convinced by Hank to join the school's track team.
Hank extends an invitation to Los Angeles Dodgers shortstop Maury Wills to visit the campus in order to appease disgruntled alumni.
A cancelled wedding party that could mean a big financial loss forces Hank to try and marry off Coach Gazzari.
Coach Weiss patches up a lovers quarrel between Hank and Doris, but alienates his wife in the process.
A 25-year-old obsolete textbook becomes the most sought-after book on campus thanks to Hank.
Hank is finally unmasked as an elusive "drop-in" at Western State.