A young girl sets her mind to creating the most magnificent thing! She has the plans in her head, gathers all the necessary materials, and builds her first prototype. However, her invention is not exactly what she had planned, and after repeated attempts at making her invention "magnificent," she quits. Her pet dog convinces her to walk away, and when she returns she tackles her project with renewed enthusiasm and conviction. The result—the most magnificent thing! This is a fun, educational look at the engineering design process.