Singer-songwriter Emeli Sandé meets Dr. Sishuwa Sishuwa, a Zambian expert on race relations, to find out more about her grandfather Saka’s life during the 1950s. He worked in the Rowan Antelope mine in the heart of the Copperbelt, producing the important metal for the British war effort. Dr. Sishuwa explains the workers lived under an apartheid regime, with deeply segregated living conditions.