Tommy Tricker and his friends are out to free Charles Merriweather, the mysterious lad held prisoner on a famous Bluenose stamp since his last attempt at stamp-travelling, 65 years ago. But Charles turns out to be...a girl, his sister Molly! And she is rapidly turning into an old woman. To find a cure for her, Tommy takes off in a race against time that leads him and Molly to the exotic and magical South Pacific islands, that may well be Shangri-la. A film full of adventure and laughs! A great follow up to Tommy Tricker and the Stamp Traveller.