Buck was living with Judge Miller, his sons, and the small annoying dogs, he had many restrictions, and couldn't run around.
Francois and Perrault ended up giving Buck to Hal and Charles. Hal and Charles had an encounter with John Thorton who took Buck from them after warning Charles to stop whipping the dog.
Buck felt love for the first time when he was with John Thorton. Also when he got bored not working he heard the call of the wild. Making him yearn to go to the call. Buck ventured out and made friends with another dog who had the instincts of the wild.
Buck had killed some of the Native Indians who tried to attack him. In the distance her heard a yelp and there was John Thorton dead.
Buck ends up killing more of the Yeehats. After having his bash of human skin. Another wolf walked up to Buck in a friendly manner. He recognized the wolf from his adventure in the wild a while ago. His wild brother. Buck ran with the wolves yelping as they did so. Finally listening to his call of the wild.