Sarah Sullivan and Harry Higgins are struggling to stop the doors of Red Cliff's Ragged School from closing for good. An important inspection is looming and there is still so much for the pair to do if their pupils - the poorest and neediest orphans of Torquay - aren't to be turned out into the cold. Newly orphaned Solomon is another mouth to feed. Luckily, Sheena O'Reilly breezes into their lives - flame-haired, light-hearted and willing to throw herself into helping the children with love, laughter and Irish practicality. Sarah's once-sweetheart Harry takes a shine to Sheena, but Sarah believes the new mistress may be hiding something from them all...