On his 50th birthday, a man who's been watching his weight, health and temper all his life suffers a heart attack. He's been doing everything he was told he should do and it still didn't help. He decides to turn the page and let loose.
Tom (8) and Benjamin (11) travel to Stockholm to spend the summer with their father, whom they have barely seen since he divorced their mother. Tom, in particular, knows next to nothing about this strange, solitary man who seems never to sleep. When he suggests they spend a few days at his cabin in the country, the boys are delighted. But the cabin is totally isolated in the middle of a huge forest, a place both beautiful and troubling.
Sixteen-year-old Logan is an adolescent uncomfortable in his own skin. Only his science fiction dreams of a better life on Mars draw him away from his ordinary life, which is as equally difficult at home or at school, where he's only seen as an aggressive loser. One evening, he receives a visit from a mysterious man who insists that he has come from the future and that he is also Logan, but forty years older. He then asks the younger Logan to carry out a mission as unexpected as it is important: to save humanity.
