The story of one man's struggle to maintain his faith in spite of everything life throws at him. As the outbreak of the First World War looms closer, John Henry McClintock, a Northern Irish Protestant by upbringing, meets Rose Flanagan, a Catholic, at a gospel tent mission - and falls in love with her. When Johnny enlists and sets off to fight in the War he finds himself surrounded by death and tragedy, which pushes his trust in God to the limit. After more than five years absence he returns home to a bitter, war torn Ireland, where both he and Rose are seen as traitors to their own sides....