Chaos reigns at the natural history museum when night watchman Larry Daley accidentally stirs up an ancient curse, awakening Attila the Hun, an army of gladiators, a Tyrannosaurus rex and other exhibits.
Fired from his band and hard up for cash, guitarist and vocalist Dewey Finn finagles his way into a job as a fifth-grade substitute teacher at a private school, where he secretly begins teaching his students the finer points of rock 'n' roll. The school's hard-nosed principal is rightly suspicious of Finn's activities. But Finn's roommate remains in the dark about what he's doing.
A washed-up '80s pop star gets a chance at a comeback when reigning pop diva Cora Corman invites him to write & record a duet with her, but there's a problem--Alex hasn't written a song in years; he's never written lyrics and he has to come up with a hit in a matter of days.