In the autumn of 1972, Idi Amin began the ruthless expulsion of the Ugandan Asians. In just 90 terrifying days an entire community of successful professionals and entrepreneurs was uprooted and turned into penniless refugees. Thirty thousand came to Britain where, despite domestic opposition, they thrived socially and economically, and are often praised as Britain's "model minority". Thirty years on, Nand Sail unearths their stories of fear, loss and determination.