Chester Royde an American millionaire travels to Scotland with his new bride Carrie & sister Myrtle to find out more about Carrie's Scottish ancestry Their new 'relatives' turn out to be a little more authentically Scottish than they bargained for Ben Nevis Laird of Glenbogle Castle is fiercely protective of his lands & the Macdonald clan spirit but being cash-strapped he's not above attempts to marry heiress Myrtle to one of his many brawny sons But then a group of hikers stumble onto his moor & spoil a day's hunting sparking all-out war between gentry & commoners