In the exposition Buck(the main character) is at his home and then he gets taken from his home. But the problem is that he can not really find his real self that he is more than just a normal old house dog.
John Thortan took Buck from Mercades and Frasico. Who neither of them had any idea what they were doing. He prety much saved him
The climax is when John Thorton gets killed by Yeehats. And then Buck trys to fight off the indians. He kills some in the process. Later on Buck found John Thorten of a pool of water.
After buck sees that John Thorton was killed by the indians he paced around and apack of wolves come to eat the bodies. he examed the wolves and then sniffed the eldest os the wolves.
Buck finally finds his finds her true self wich is being a wild wolf. He does everything with them. He hunts with them hwols with them pretty much everything .