The familiar bell of Summer Heights High is poised to signal the start of a new term. Anticipation hangs in the air – what creative explorations will Mr. G, the school's drama teacher, lead his students toward this time? And what escapades …

With Mr. G's arrival as head of the drama department, disruption ensues. Ja'mie navigates her first day of school, while Jonah grapples with a desire for change.

At Summer Heights High, Ja'mie navigates a relationship with a younger boyfriend, Jonah takes to the dance floor during the Junior School Dance, and Mr. G finds himself creatively spurred to compose a new musical following a sudden loss.

A regrettable mishap involving a misplaced image of her friends has landed Ja'mie in peer counseling, a rather awkward setting given the participants. Meanwhile, Jonah is navigating the stipulations of an anger management agreement, and Mr.…

Ja'mie and her companions strive for a Year 11 formal, while Jonah finds himself navigating the company of Year 7 boys. Meanwhile, Mr. G persists in his work on a musical composition.

Mr. G is grappling with significant difficulties surrounding the production of the "Annabelle Dickson Musical." Meanwhile, Ja'mie adopts a false persona, claiming to be a lesbian, and Jonah faces suspension from school.

Mr. G resigned from his position. Ja'mie fabricated a fundraising effort for AIDS research. Jonah was disqualified from a breakdancing competition.

The curtain ascends on Mr. G's musical as Ja'mie suffers a rejection from her school formal date, an event that irrevocably alters Jonah’s destiny.