Baldwin is a simple Switcher Train, whose job is to move trains, cars, and cabooses around the train yard, readying them for their long- haul journeys, but in reality, aspires to be like his father, Big Al, the most famous of the world's steam engines--but new and powerful diesel engines were now replacing the much older steam engines. After Big Al doesn't return after a long journey, Baldwin sets out along the wide-open rails in search of his father along with his best friends Bobber the caboose. Baldwin's Big Adventure is the story of the relationship between a son and father, friendship in the face of the unknown, and learning how to grow into who you want to become. This is a tale that continues to chug around every bend toward the horizon and ultimate goal - even if it starts out with just a small, unassuming switcher train with a giant heart!