When Homer accidentally causes a meltdown during a suprise inspection of the plant, the inspectors insist that Homer be properly qualified and complete a degree in Nuclear Physics. Burns gets Homer a place at Springfield University, but Homer causes yet another meltdown.
The Dean suggests Homer should get some outside tutoring, however, Homer convinces his new tutors to play a prank on the Dean. The nerds are caught and are expelled from Springfield U.
Realizing that they cannot cope out in the real world, Homer invites them to stay with him, much to the family's annoyance. Homer comes up with another prank to get the nerds readmitted to the university, but ends up running the Dean over. Homer explains and apologises, and his friends are readmitted.
Homer flunks his big final exam, but the nerds change his grade with a computer. Marge finds out and tells him to retake the course to set a good example.