In the small town of Gingerton lives a young man named Andy and his father, both hard working inventors. Petean antique, coal burning locomotiveis Andys favorite object in the world. All of his life, Andy has dreamed of being Petes engineer.

Pete is a beautiful train, decorated lavishly with bronze and gold, but the black smoke that bellows from his engine is bad for the towns people. And they have had enough. Andy must come up with a plan to save his special train before it is shut down forever.

The townspeople give Andy three months to prepare Pete to burn clean fuel, proving to all of Gingerton that with innovation and hard work, anything is possible.