The Sign Painter

Early one morning a boy comes into town, hungry and looking for work. He meets a sign painter who takes him on as a helper. The boy yearns to be a painter. The man offers him security.
The two are commissioned to paint a series of billboards in the desert. Each billboard has one word, Arrowstar. They do not know its meaning. As they are about to paint the last sign, the boy looks up and sees in the distance a magnificent structure. Is it real? They go to find out.