Before World War II has even been officially declared ten-year-old Hazel Morgan & her eight-year-old brother Peter are evacuated leaving London for the safety of the Sussex countryside. With her children gone & her husband John in the army Rene Morgan misses her family terribly. When she learns that John has become a prisoner of war she has to take on the highly dangerous job of firewatcher. Meanwhile Hazel & Peter are desperate to go back home. Returning to the city they are overjoyed to be reunited with their mother & Gran. But their father is still far away & the worst of the war is yet to come. As the air raids increase the Morgans must face the terror of the Blitz together...