October 1940: Manchester, England. As valiant Jewish RAF pilot David defends the skies against the Luftwaffe, Harry (Jonah Hauer-King) and Kasia (Zofia Wich?acz) finally arrive home. How will Robina (Lesley Manville) cope with another refugee under her roof?

When yet another house guest arrives - Sir James, a civil servant on official business - he looks set to beguile his host, but will Kasia be charmed as well?

Meanwhile, in Berlin, teenager Marga is selected to mother a baby for the Führer, but can her best friend Gertha convince her to reconsider? In North Africa, Stan has found a new enemy in brutal desert conditions while meticulous Officer Rajib (Ahad Raza Mir) leads a team of Indian Sappers in the gravely dangerous task of clearing minefields. And in Paris, Henriette oversees the Resistance escape route.