Set against the backdrop of World War II, 'Sisters of Belfast' is a poignant tale of Aelish and Isabel McGuire, known as the twins of Belfast, who are left in the care of the Sisters of Bethlehem after being orphaned. As they mature, their paths fork sharply. Isabel, the rebel, leaves Ireland to brave a dangerous yet freeing life in Newfoundland. In contrast, Aelish stays, embraces a life of religious devotion in Northern Ireland, and silences her agonizing memories. Separate for decades, their lives unfold in ignorance of one another until a call bridges the oceanic gap and beckons Aelish to Newfoundland. This reunion illuminates the harrowing deceptions and truths kept in the dark, prompting the sisters to reassess their lives, beliefs, and shared past. Through newfound mutual understanding, they explore the complexities of love, hope, and forgiveness, binding their lives once more in the enduring power of sisterhood.