Set in the near-future UK; Daisy, an American teenager sent to stay with relatives in the English countryside. Initially withdrawn and alienated, she begins to warm up to her charming surroundings, and strikes up a romance with the handsome Edmund. But on the fringes of their idyllic summer days are tense news reports of an escalating conflict in Europe. As the UK falls into a violent, chaotic military state, Daisy finds herself hiding and fighting to survive.