Historical television drama set in rural Northern Ireland during the Second World War. The Coyne family - English wife Rose (Hattie Morahan) to Irish husband Michael (Owen McDonnell) and their three children - live in the quiet town of Moybeg. Being from London and having not lost her accent, Rose is the only person who feels somewhat a stranger in the town. But this all changes when several thousand American military personnel arrive at the newly established airbase. Suddenly there are a great deal more strangers than anyone in Moybeg is used to, and one in particular catches the attention of Rose: Captain Ronald Dreyfuss (Aaron Staton). He and Rose spend considerable time together since Rose is forced into mediating between the Americans and the townsfolk, and she must quickly decide whether this romance is worth the cost.