It's the first day of puppy school and Dig Doug, Puddles, and Cheddar can't wait to start digging, building, and loading in their trucks. But when their teacher, Miss Polly, gets stuck under some rocks, they'll have to come together and use teamwork to get her free! Closing their eyes to make the rocks disappear doesn't work . . . so which of Miss Polly's lessons can Dig Doug, Puddles, and Cheddar save her? Beloved children's book author Bob Shea and illustrator Brian Won have created an endearing new board book series with the cutest construction workers around.