Ginger Boxwell flies from Australia to the UK to spend the summer with four cousins she's never met before. What she doesn't realise is that Matt, Robbie, Ethan and Chris are just as nervous about it as she is.
Sixteen contestants, ranging in age from 12 to 15, are taken completely off the grid to solve puzzles and overcome physical challenges, with the laws of karma setting the rules.
Satina details the life and (mis)adventures of the titular demon child and her parents. Satina is the daughter of the overworked Queen of North American Hell, Lucia, and her father Dave, an ordinary man working as an IT consultant in the human world.
The story takes place during the weeks before Christmas, in the small mining town of fictitious Granhyttan in Bergslagen, Sweden. One day a suspicious couple, Signe and Orvar, arrives in the small town and retires in an abandoned hut. Nobody knows what they up to; but strange things starts to happen as Staffan finds a gold nugget while playing in a disused mine at the Kråkberget Mountain during a skiing trip with his schoolmates. Staffan believes the nugget is a part of Skarp-Erik's gold, as his grandpa had told exciting stories about. The news about the gold discovery spread quickly and Staffan and his friends are soon pursued by curious schoolmates, school staff and also the mysterious strangers. All this happens as the students are rehearsing for the nativity play before Christmas break.