The nerds are now in control of the university, as a result of Lewis Skolnick and the rest's actions in the two previous movies. A new generation of sportsmen arrive, however, determined on winning the school back. The principle, himself an ex-nerd fighter, helps them, and the nerds return to suppression. Harold Skolnick needs help from his uncle Lewis, the hero of the first two movies. Lewis, however, are not too proud of his nerd past, and won't reveal any of it, much less help his nephew. However, his wife makes him change his mind, and with help from his friends from the first two movies, they start the fight to win the school back, using classic nerd tricks.
Robert Carradine
Ted McGinley
Curtis Armstrong
Julia Montgomery
Gregg Binkley
Richard Israel
Morton Downey, Jr.
John Pinette
Grant Heslov
Henry Cho
Mark Clayman
Chi McBride
K.T. Vogt
Tim Conlon
Laurel Moglen
Lawrence Wolf
Bernie Casey
James Cromwell
Larry B. Scott
Brian Tochi
Michele Matheson
Jimm Giannini
Winifred Freedman
Terrance Michael Ward
Nicole Picard
Jennifer Bassey
Viola Kates Stimpson
Michael McDonald
Shannon Bradley-Colleary
Sean Whalen
Phyllis Applegate
Robert Gould
Alan Wittert
Kimberly Bailey
Jim Maniaci
Mike Greenwood
Jon Koons
Derya Arbaş
Alecia Workman
Gregg M. Winters
Clancy Brown