The Father Tree

Andro is a boy obsessed with trees, just like his father. When his father leaves, however, his mother decides to move from their house on the edge of a forest to Calgary. Andro is unhappy there and can't make anyone understand why. When he tries to run away, his mother takes it as an opportunity to ship him off to his grandfather's farm in the Fraser Valley, near Vancouver. There he is happy and eventually meets a girl at school with the same interests.
Accidents begin to happen around the farm, though, and when his grandfather is attacked and needs to be hospitalized in Vancouver, Andro realizes that he and his girlfriend are also in danger. And it seems to have something to do with his long missing father...