The repetitive passing-on of the same cold strain in Dilbert's office causes it to mutate and turns the coworkers into monsters. Rather than eliminate the virus, the company decides to start fresh by moving everyone to a new office, which Dilbert is tasked with designing in exchange for a new office.
On the eve of the new millennium, everyone — except Dilbert — is making New Year's plans. While assuring everyone that the company is prepared for Y2K, Dilbert discovers that the computer mainframe's main processor isn't Y2K-compatible and all the company's systems will crash if it isn't fixed. Dilbert is rewarded for discovering this by being assigned to fix it, and he discovers that the system's original programmer was Wally. But have years of drudge work dulled his brain too much to be able to tackle this crucial task?
Dilbert has a near-death experience at a gas station, and finds that the afterlife is exactly like the office. Meanwhile, a group listening to a multi-level marketing speech become hypnotized, and through a bizarre accident caused by a crashing space shuttle and the birthday kit create a religion based on Wally. Dilbert and Dogbert manage to cover up the crash, while Wally turns away his followers with his odd habits.
Dilbert and his co-workers find an empty cubicle and start dumping their obsolete computer equipment into it. To keep the marketing department from claiming the cubicle, they hack into the human resources database and create a profile for a fake engineer named Todd. The plan backfires when Todd is named project leader and develops a messianic reputation.