Bayside's 40th birthday celebration is in full swing. Bobby is running for homecoming "king" against Rachel, who's running for queen. A millionaire alumnus, J. Walter McMillan, comes to tour the school. He plans to buy Bayside and tear it down for condo construction. The gang are all reassigned to different schools. Screech's work program will come to an end and Mr. Belding will be looking for a job. Screech and the kids resolve to stop McMillan. Screech disguises himself as attorneys for both sides and the gang chain themselves to lockers, but nothing works. The school is slated to be destroyed after the prom.