Train Tracks

Sam gets the train to school every day. He sits alone in a carriage where most people don't sit. One day there's a girl on the train. She doesn't sit with him, and doesn't try to talk to him at all. Exactly one year after he sees her, she sits with him. They start talking and become close after a while. But it's a bumpy ride of a friendship that could leave their relationship in a train wreck.