Marly and Aerie are two guide dogs working across the United States with Juliet and Shawn, who are blind. This adventure takes place in our nation's capital, Washington DC, where the dogs guide their handlers as they explore America's historical monuments. At the National Air and Space Museum, they learn about the first airplane, explore the solar system, and find moon rocks. Their guide work in the hotel displays excellence until Marly's adventures turn upside down. Aerie's adventures at the Title Basin keep Shawn on his toes. Racing through the Capital Mall during a thunderstorm surprises their companions at the undeniable abilities of blind people. As always, Shawn, Juliet, and their guides manage to make an impression on everyone they meet.