In Chapter 11, there is a fork in the road, so I go down the path to see what is at the end. Open the door, and I find Juggernaut. This guy gave me quite an epic war of attrition.
The actual cinematic after this battle has been blocked worldwide by Square Enix and Sony Music from Youtube.
This link should have the ending, unless it has been taken down:
Just got into Gran Pulse, Chapter 11, to take on a Behemoth King.
I wanted to get a preemptive, but he got to me first.
You have to make sure to stagger him before he raises up and heals himself...