Martha, Robin and Diko are pupils at Cheney Secondary School in Oxford. Environmental and ethical issues form an important part of their curriculum: the school even has a fair trade club. These teenagers are angry at what they see as the greed of the high street clothes shops, where the workers seldom benefit financially from the clothes they make. So they are embarking on a mission of a lifetime to India. Their aim is to redress this balance, by sourcing for themselves the materials needed to make their own ethical school shirt to sell back at home.

Sunday 17 February at 7:00pm on Channel 4