This beautifully illustrated picture book showcases the workers that keep a city running all through the night and make it ready for the new day. The sky is getting dark. In the city, a little girl is eating her dinner, brushing her teeth, and getting ready for bed. Meanwhile, her mother is putting on her coat and getting ready to go to work. Where is she going and who will she see along the way? As the night goes on, readers will see nurses, cleaners, delivery workers, doctors, police officers, journalists, and many other workers who help keep the city running all through the night.