Highlighting an explosive tragedy that spanned decades, 'Oranges and Sunshine' tells the real-life story of Margaret Humphreys (Emily Watson), a social worker from Nottingham who uncovered one of the most significant social scandals in recent times: the organised deportation of children in care from the United Kingdom to Australia. Almost single-handedly, against overwhelming odds and with little regard for her own well-being, Margaret reunited thousands of families, brought authorities to account and worldwide attention to an extraordinary miscarriage of justice.