Rainsford falls off the boat because he heard gunshots and leaned to far forward.
That is terrible
I got bored of hunting animals so I went to something more challenging so I started hunting humans
Rainsford goes to the mansion
Rainsford meets Ivan and GZ
I am going to beat you whoever wins gets to stay in this home and gets the great bed
GZ talks about hunting humans and offers Rainsford to hunt with him but Rainsford declines because he says he feels "sick" and "tired" so he goes to bed.
GZ is hunting Rainsford because he refuses to hunt humans with GZ so Rainsford hides in trees makes traps imjuring GZ, killing his best hunting dog and then killing Ivan.
Rainsford swims too the mansion and GZ is in the house and the General said whoever wins the fight to the death so to speak and the General lost and Rainsford got a big home and a comfy bed to sleep in.