The four immigrants, who entered Britain over a year ago, come originally from Poland, Colombia, China and the Democratic Republic of Congo. None of the four has managed to learn English so far. Now, each of them has their own special reason for wanting to learn: for some it means more opportunities for work, and the chance of a fresh future for them and their family; while for others it offers a possible end to loneliness.

The four immigrants are halfway through their period of learning English. After a week spent living with their British hosts, the immigrants now turn the tables as they welcome the Brits into their own homes. The Brits are about to get a crash course in immigration - why people come here, how hard it is for them to communicate, and how isolated they can become.