1941. With the men away fighting, animal-lover Hettie Quin is made Belfast Zoo's first ever female zookeeper. She is put in charge of Violet, a three-year-old Indian elephant, and they soon form a special bond. With Violet at her side, Hettie can almost escape the grim reality of her life: the father who has abandoned her family; the sister who recently died; the war that's raging hundreds of miles away. But the devastation of war is closer than she thought. When the bombs begin to rain down on the city, Hettie must gather all her courage to protect those she loves the most. Can she save Violet - and get through unscathed herself?