In 1920s Ireland, an elderly couple reside over a tired country estate. Living with them are their high-spirited niece, their Oxford student nephew, and married house guests, who are trying to cover up that they are presently homeless. The niece enjoys romantic frolics with a soldier and a hidden guerrilla fighter. All of the principals are thrown into turmoil when one more guest arrives with considerable wit and unwanted advice.

A young Christian boy attends a druid worship that is attacked by invading Irish tribes. Taken captive, he is taken back to Ireland to become a slave. Enduring many hardships, he finds comfort and eventually salvation in his faith. After several years, he escapes back to England, where he joins a convent to prove his faith. His greatest desire is to return to Ireland to convert the Irish to Christianity. Years later, he is given the opportunity. Upon setting foot on the Irish soil, all snakes are aitomatically driven from the land. He then overcomes many obstacles, including disagreements with the British Cardinal (Malcolm McDowell), to fulfill his destiny and ultimately being given Sainthood.

A young Dublin girl spots Bono everywhere until she finally meets him in the shop where she works.