In 1921, Jimmy Gralton's sin was to build a dance hall on a rural crossroads in an Ireland on the brink of Civil War. Young people could come to the hall to learn, to argue, to dream ... but above all to dance and have fun. As the hall grew in popularity, its socialist and free-spirited reputation brought it to the attention of the church and politicians, who forced Jimmy to flee and the hall to close. A decade later, as Jimmy reintegrates into the community and sees the poverty and growing cultural oppression, the leader and activist within him is stirred. He makes the decision to reopen the hall in the face of whatever trouble it may bring.