When Zipper's father arrives on campus for a visit, Checko and Ronald conspire to trick him into believing that his son is a model student. Since Harlan is out of town, Zipper attempts to pose as president of the fraternity.

En route to Florida for spring break, Checko, Ronald and Zipper end up stranded at a seedy roadside diner when their car breaks down. They are shocked to discover the snobbish Mary Lee working as a waitress.

When Harlan cheats on a calculus exam and Zipper is mistakenly accused, Zipper has to decide whether to accept a failing grade or tell on Harlan.