Documentary about a pioneering British school helping 11 and 12-year-old pupils uncover and eradicate hidden racial biases by giving them a series of activities designed to challenge everything they thought they knew about race. To begin with the students are split into different work groups according to their skin colour. A white British student and his black Caribbean best friend are shocked to discover the level of unconscious bias they carry, while a 12-year-old bi-racial girl is keen to find out what group she belongs in - white or black?