When Jon took on a troublesome two-year-old Border Collie in A Dog Year, it turned his sedate life upside down and culminated in a move from suburbia to a rural farm.

But the contrary Collie - incredibly loyal but incredibly misbehaved - never settles down. Jon tries everything, obedience training, changing his name from Devon to Orson, even acupuncture, and it all helps a little, but not enough.

Together Jon and Orson chase sheep across high meadows, wade through snow, bask by a roaring stove and struggle to keep faith in each other. A story of great joy and heartbreak, in A Good Dog Jon faces the most difficult decision any dog lover has to make ...