乔治失去父亲后在一个冬天来到祖父母家，通过和一只狗狗的相处获得了成长。

每25年，它就会开始。一个拥有无限权力的家庭，在一个古老的契约的约束下，降临到一个乡村小镇上，牺牲了4个人的生命，其中一个是他们自己的家庭成员。

The definitive, adrenaline-soaked story of the birth and boom of the most extreme sport on the planet: Freestyle Motocross.

During Janus stay at a psychiatric hospital, the letters from Amina was what kept him alive. Now the letters have stopped, so he sets out to find out what happened to her, whatever the cost may be.