Abandoned by the side of the road, Chas the puppy is taken in by a clan of badgers and learns to become wild.

The idea of killing other creatures horrifies him at first, but he learns to hunt with Sly the fox and endures a harsh winter with the woodland creatures.

When he accidentally meets Joe, a farmer’s son, Chas must decide whether he really is a wild dog, or whether he can trust the master he longs for.