Long before Doctor Fingal Flahertie O'Reilly became a fixture in the colourful Irish village of Ballybucklebo, he was a young M.B. with plans to marry midwife Dierdre Mawhinney. Those plans were complicated by the outbreak of World War II and the call of duty. Assigned to the HMS Warspite, a formidable 30,000-ton battleship, Surgeon Lieutenant O'Reilly soon found himself with the hardships of war, tending to the dreadnought's crew of 1,200 as well as to the many casualties brought aboard.