It is February 2, Groundhog Day in Late Winter. Stanley, Marci and Mimi were disappointed when the snow has melted. After watching TV and seeing that the Groundhog did not see his shadow, they know spring is on its way. But however Mom tells that it was just a legend. After learning about groundhogs from The Great Big Book of Everything. They learn that spring is not coming tomorrow. But with Mom's help, they go outside and become spring detectives. They search for clues and signs of spring coming outside such as the sun staying up longer, the buds bursting of the trees, the birds coming back, singing and building their nests, as well as flowers blooming out of the snow. It is Earth Day in April, and Stanley learns about bluebirds from The Great Big Book of Everything and how he can save them.