With Mike gone and in need of money for a trip to Cancun, Zack and the gang stage a rave in the dorm.

With Kelly still pining over Professor Lasky, Zack tries to find ways of getting her attention and ends up volunteering as an orderly at the health center. Unfortunately, Professor Lasky winds up there as well, and Zack has to come up with one scheme after another to get him out of the way. Meanwhile, Screech tries to fit in with a group of pledges at his fraternity.