The series follows Kayleigh Clarke, a newly appointed pastoral Head of Year 10 with zero teaching experience and little patience for teenagers as she faces off with everything from Ofsted inspections and AI-generated scandals to riotous Parent’s Evenings. Despite the lack of resources, overworked staff and relentless students, Kayleigh is determined to turn her lack of credentials into a strength as she forms unexpected bonds and discovers that sometimes empathy (and maybe a bit of bribery) is the best tool for survival.