A family give up their modern lives for one summer to experience what life was like for Caribbeans who immigrated to Britain in the postwar period.Beginning in 1948, the year the Empire Windrush arrived at Tilbury and discharged its passengers, the Irwin family travel through the 1950s and 60s, guided by presenter Giles Coren and social historian Emma Dabiri who introduce them to their new homes as well as the events of the time. Along the way the Irwins discover the food, work and entertainment of first-generation immigrants making their lives in Brixton.In 1959, the whole family get a lesson in 1950s steel pan from EastEnders star Rudolph Walker, and in 1962, dad Weininger gets some fashion tips from 60s singer Kenny Lynch. In 1966, mum Janice embraces her role as a nurse at a time when the NHS recruited directly in the West Indies for staff.As the family's living situation improves over the years, they decide to see the 60s out with a blues party.