A crash course in the turbulence of being a teen is always on the schedule for the students at Hartley High School in this 1990s series set in Sydney.A crash course in the turbulence of being a teen is always on the schedule for the students at Hartley High School in this 1990s series set in Sydney.A crash course in the turbulence of being a teen is always on the schedule for the students at Hartley High School in this 1990s series set in Sydney.