Jack is a great person.

Although jack is also injured but he did not panic.
He started to help others.
He is not afraid to all the beasts of the mountain with you to find the missing pilot.
Although really encountered that monster.Hard to find the captain is dead.
Communication devices is also important to leave things too.
Really is a great person.
Unfortunately, only two sets.

I agree with your view

jack is indeed a very powerful
Treatment is also very cool is happening before his eyes
I want to change I might make is scared silly
Can not do anything

Jack is really good courage, and if it were me, I should be scared do not know what to do