从事儿童教育研究的伦德教授，禁不住几个人小鬼大的小外甥的怂恿，踏上了去加拿大寻找祖传黄金的旅途。小鬼们瞒着在加拿大的姑姑，带着舅舅终于在一个山洞里找到了曾祖父埋藏的黄金，但同时他们也被当地的强盗盯上了。 “Family film ”My Sisters Kids & the Gold Diggers' sends Uncle Erik and the kids on a new adventure. This time discovering the children that their great-grandfather emigrated from Denmark and was a gold digger in Canada. Even now, many years later, they still have family over there. So when the family comes in contact with an aunt, they travel across the Atlantic to visit her. In Canada awaits them a true treasure hunt, the wild and two greedy prospectors. At the same time they are joined by Mrs. Flinth which, as always, has a crush on Uncle Erik." in high quality.