It's the start of a new school year, and Pencil and Eraser are ready for anything. Except when Pencil notices her point has dulled. That's never happened before and she feels...pointless. Stella can't write with a dull pencil. So what can Pencil do?

The only answer is to leave the comfort of their desk behind and venture out to find a sharpener. But if Pencil is going on an adventure, she'll need to bring her (reluctant) bestie Eraser along for the ride. Together they'll have to traverse the classroom, scale a mountain-sized desk, enter uncharted territory of the school hallway, and avoid being caught by the janitor. Can Pencil and Eraser manage all that before Stella and her classmates return from recess?