Everyone is fine. They were not sure on the cause of the fire, they noticed a discoloration in the hood and pulled over to check it out, by the time they popped the hood it was too late. They had two fire extiguishers that didnt do anything for stopping the fire. The guy was doing someone a favor and picking up their trailer and tranporting it for them, by the time it was over half the trailer burned up. The guy also had several guns and ammo in the truck that were going off.
So basically the guy couldn't do anything but watch his truck burn to the ground.