Brian Robenson is a teenage boy whose parents got divorced (because of his mom´s secret) and is flying in a plane to Canada to visit his dad when his plane crashes in a lake somewhere in the Canadian wilderness.
He finds a little hole in the wall and makes that his shelter/ home for his time here.
He goes through hardships and learns from them.
He makes tools and gets food using all he has got.
Background knowledge and trying things out help him solve his problems.
After 54 days he is finally rescued and goes home. He gets publicity, but that dies down, and his parents never get back together. :(