Young Jean-Baptiste dreams of the day he'll leave his Picardy home and row down-river to the sea. Earnest and hard-working Frank has come to London to take up an apprenticeship in Regent Street. His ambitions are self-improvement, a wife and, above all, a bicycle. Organ scholar Benedict is anxious yet enthralled by the sensations of his synaesthesia. He is uncertain both about God and the nature of his friendship with the brilliant and mercurial Theo....

It is 1939 and in the town of Dartford, Grace, Sally and twins Daisy and Rose, are determined to do their bit when war is declared. Grace, desperate to get away from her sad home life, signs up for the Land Army. Sally's dream of stage school is thwarted by the war, but she finds hope in an unexpected place. Rose signs on at the local munitions factory, but with her brothers away fighting, Daisy is needed at home in her father's greengrocer shop.