On the middle of Mount. Nightseer there is a town completely powered steam, a town recovering from a civil war. Jet Steam had to see his friend leave town because of this civil war, a disagreement which ended up with all the unicorns leaving town. Five years later at the age of seventeen these events still haunt him but he does what he has to working in his small group of Developers. After one day going higher up the mountain to inspect the mountain Jet Steam is forced to face his friends, his family and his fears to save his town and everyone else.