Aileen Doherty is leaving her sheltered life on the island of Illaunmor for the first time, to go tattie picking for the summer in Scotland with her father and brothers. Then she meets the irresistible Jimmy Walsh, who falls for flame-haired Aileen the moment he sets eyes on her. Spending each day working side by side, the two fall passionately in love, until their happiness is cruelly cut short by a tragic accident, changing their young lives forever.
Back on Illaunmor, Aileen finds solace in reviving an abandoned garden. Gradually, through the magic of hope, she brings the garden back to life - and herself with it. But it takes a true miracle to finally heal her broken heart.