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。

Instead of chasing boys on the beach with her friends, recent college grad Dora finds herself caring for her reclusive Great Aunt in snowy upstate New York. Whe…

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

3季，每季22集