Documentary following staff and pupils at the all-boys' institution. Filmed over the course of a year, the programme explores the most eccentric customs and traditions of the public school, which counts former prime minister Winston Churchill and actor Benedict Cumberbatch among its famous alumni. In the first edition, homesickness gets the better of Oliver, Sachin, and Dillon - who has travelled from Malawi - as they leave their families behind to begin life in their uniformed blue blazers and grey trousers.
The pupils compete in the annual Glees & Twelves competition - an a cappella sing-off held in front of the whole school - but the much-fancied West Acre house is rocked by a sporting injury to one of its treble singers, leaving top scholar Daniel under increasing pressure to lead his group to victory.
It's halfway through the summer term, and sixth-former Shrai is nervous as he becomes the first boy to ever direct a house play. It's an exciting but daunting honour, given West Acre's reputation as the artiest of the houses - but as stress levels rise and his popularity plummets, it seems he may have bitten off more than he can chew. Andreas is also feeling the weight of expectation, trying to meet the demands of being a music scholar, juggling school work and hours of practice with performances in various productions. The latest is the biggest musical event of the school year, which sees thousands of old boys invade the Royal Albert Hall for a nostalgic singalong celebrating everything great about Harrow.
As the autumn term draws to a close, sixth-formers Hugh and Henry reflect on some of the school's eclectic range of traditions. They include Contio Latino, an annual event which requires the Head Boy to deliver a 20-minute speech in Latin, and the Long Ducker, a compulsory 10-mile race from London to Harrow. Meanwhile the Shells, or first-year pupils, are still getting to grips with what it means to be a Harrovian, with a football match designed to help them settle in.
The boys return after the Christmas break and are straight back into their studies. One student feeling the pressure is music scholar Henry, who is charged with organising West Acre's entry in the annual inter-house orchestral competition while also juggling exam revision, careers conventions and the start of the school football season - and with only a week to go, it turns out he still hasn't arranged anything. Will it be all right on the night?
As the inter-house army-drill competition approaches, sixth-form student Hugh tries to get West Acre's bungling band of brothers to march in step, and cameras go behind closed doors to follow the work of the kitchen and laundry staff responsible for keeping the institution running smoothly.
t's the start of the summer term and House Master Martin Smith has his work cut out trying to help the boys concentrate while they revise for their exams. They also attend Speech Day, an open-air event in which the students dress in tails and individually tip their hats to the headmaster, and look forward to the inter-house relay race finals. West Acre has its hopes pinned on young Joel - until the sprinting star is injured in a rugby match.
Emotions run high as house master Martin Smith prepares to retire after 30 years at Harrow. But first he has to guide the students through exam season, and with places at the country's major universities at stake, the upper sixth are feeling the pressure. There is just time for one last inter-house competition, and determined to do Mr Smith proud before he departs, the boys of West Acre give it their all to successfully defend the Music Prize cup. Last in the series.