Need to Know Questions

1. What happened to the town of Trona?
2. How did Dirk and his friends come to be in power?
3. What is the box that he keeps opening in the car?
4. How does the empty supermarket manage to feed all of the people in the town of Trona?
5. Why does Ray remain married to his wife if clearly he is unhappy?
6. What happened to Ray's wife?