There is a war between Mastan Bhai's gang and Naaga's gang. Sena (Sathyaraj) is a local rowdy who works for Mastan Bhai (Anandaraj). Naaga (Vagai Chandrasekhar), the former right-hand of Mastan Bhai, tries to kill him. Sena has a little brother called Vikram (Aravind Akash) who hates rowdyism. Vikram loves Janu, sister of a police officer, Sathya. Sathya is killed by Naaga's henchmen and Vikram wants to punish the culprit.
After a misunderstanding aboard an airplane that escalates out of control, the mild-mannered Dave Buznik is ordered by Judge Daniels to attend anger management sessions run by Doctor Buddy Rydell, which are filled with highly eccentric and volatile men and women.
Four boyhood pals perform a heroic act and are changed by the powers they gain in return. Years later, on a hunting trip in the Maine woods, they're overtaken by a vicious blizzard that harbors an ominous presence.
Fired from his band and hard up for cash, guitarist and vocalist Dewey Finn finagles his way into a job as a fourth-grade substitute teacher at a private school, where he secretly begins teaching his students the finer points of rock 'n' roll.