Plot
Years after Lambda Lambda Lambda (Tri-Lambs) defeated the Alpha Betas and secured rights for nerds, Adams College has become a haven for intellectualism, with the Tri-Lambs now one of the campus's most respected fraternities. Harold Skolnick—the nephew of former Tri-Lamb leader Lewis Skolnick—and his friend Ira Poppus enrol at Adams. Meanwhile, former Alpha Beta Orrin Price, now a wealthy businessman, brings his nerd-hating son to the college. Disapproving of Adams's transformation and the Alpha Betas' diminished status, Price convinces the board of regents to replace retiring Dean Ulich with former Alpha Beta—and Lewis's rival—Stan Gable.
Lewis, now chair of the Computer Science Department, has grown embarrassed by his nerdy past and is determined to appear "hip". He adopts a new look, suppresses his nerdy laugh, and urges Harold to pledge Alpha Beta instead of Tri-Lamb, admitting he once longed to join the Alphas and still resents being rejected. His wife Betty, Stan's former girlfriend, reminds Lewis that she loved him for embracing who he was. However, Lewis remains intent on winning Stan's approval, unaware that Stan seeks to reassert Alpha Beta dominance and take Betty from him.
Harold and Ira pledge the Tri-Lambs instead. During a celebration for new members, the Alpha Betas, encouraged by Stan and Price, attack the fraternity and also vandalise the campus computer centre. The Tri-Lambs retaliate by using their influence to publicly embarrass the Alphas. In response, Price and Stan remove the nerds from their campus positions. Lewis refuses to confront Stan, believing they are truly friends, prompting Harold to criticise his uncle for abandoning the principles he once championed.
The Tri-Lambs enlist alumnus Dudley "Booger" Dawson as legal counsel against Stan and Price, but the nerd-hating judge rejects their case. After seeing Lewis socialising with Stan, Booger denounces him as a self-hating nerd. Price escalates the conflict by planting marijuana in the Tri-Lambs' house, leading to their arrest and the confiscation of their house, which is handed to the Alpha Betas.
Lewis confronts Stan and Price but is shaken when Stan dismisses him as a nerd, denies their friendship, and blames the nerds for ruining his life. Realising he has compromised his identity for acceptance, Lewis embraces his former self. He bails out the Tri-Lambs and shelters them at his home. Together, they organise a "nerd strike", urging the marginalised to unite. Because many essential services are operated by nerds, the strike disrupts the town.
Price retaliates by framing Lewis for embezzling college funds, destroying his credibility and ending the strike. Betty appeals to Stan to admit the truth, reminding him that Lewis genuinely valued his friendship. Stan claims that no one has real friends and briefly proposes sparing Lewis in exchange for Betty's affection, but withdraws in shame.
At Lewis's trial, the same judge rejects Booger's defence. However, Lewis and Booger's former Tri-Lamb brothers and Lewis's father appear in support. Confronted with evidence of Lewis's loyalty and friendship, Stan experiences a change of heart and testifies against Price, exposing both the embezzlement scheme and the planted marijuana. He admits his resentment toward nerds stemmed from self-loathing, confessing he always preferred reading and learning but felt pressured to prioritise popularity and athletics. Accepting his identity, Stan reconciles with Lewis and is welcomed by the Tri-Lambs. Lewis pledges to support Stan's continued tenure as dean, reaffirming Adams College's commitment to protecting nerd rights.
