Jim Button, a young boy, embarks on an epic quest to find his parents who abandoned him. Along the way, he encounters a talking steam locomotive, pirates, a golden dragon, and a mesmerizing mermaid. With the help of his friends, Jim must navigate through deserts, islands, and enchanting landscapes to uncover the truth about his past.

Jim Button and his loyal friend Luke the Engine Driver set out on a magical and thrilling journey to save a hidden island from destruction. Along the way, they encounter various challenges, unexpected transformations, and the power of friendship. This action-packed family fantasy film is based on the novel of the same name.