The Is and The Isn't / a phanfic

Europe was split into two parts 100 years ago. These two parts are The Is and The Isn't. The Is is the rich half. They never have to work and they have perfect lives because The Isn't does all the work for them. The Isn't is the poorer part. All they do is work. Both sides are split by a fire barrier. The only things that cross the barrier are the stuff The Isn't did for the Is and the counsel who govern the sides. Dan is a member of the Is. Dan has always wondered what the other side was like. One day an explosion destroys all of The Is side. Everyone dies except for Dan who dived into a lake for safety during the explosion. Now Dan has to move to The Isn't side and meets Phil. Phil is suspicious of Dan. Phil has to take Dan in and he isn't very enthusiastic about taking in an Is. How will everyone cope?