Noah is visiting Grandma and Grandpa in the city and he's in for a big surprise - he meets Gus, Grandpa's new dog. Grandpa cannot see well, and Gus is his guide dog. Now, instead of being at home a lot, Grandpa is out nearly every day! Noah follows along with Grandma and sees Grandpa ride on a bus, find road crossings and seats, and avoid obstacles, all by using teamwork. Gus even avoids an accident by refusing to move because he can see something...