Dog likes to ride along while his human companion works the big excavator at the construction site. But in this tale for readers of all ages, when they stop at the snack bar, Dog's little puppy friend goes missing. Luckily, Dog has a brave and ingenious idea for coming to the rescue—with the help of the excavator, of course! Incorporating bright yellow accents, Kate Prendergast's action-packed pencil illustrations tell a satisfying, wordless story about dogs and heavy machinery.