The class is so poorly prepared for the final exam that, according to Osman (Mido Kotaini), they have only one chance to pass: they must steal the sample answers from the principal's safe. Unfortunately, he hasn't reckoned with teacher Stimpel (Phil Laude), who does everything in his power to prevent the theft. A bet turns into an epic battle for the ominous envelope. Is Sarah (Pegah Ferydoni) really teaming up with the class against Frank?