Tyrant Jack Brass lives in a shack out in the bush where he
poaches furs illegally. Joe and the kids track him on a dog sled.
When Jack and his friend catch Joe, they plan to beat him up and
put him through a hole in the ice of the river where he will flow
out in the springtime. A fight ensues with the hole in the
background, but Chub and Sgt. Scott come and save Joe's hide just
in time.