It is 1904, and a new amusement park is being built in Coney Island. Unfortunately, the construction is happening right on the dunes that Selena, a scrappy little rabbit, calls home! From her trolley car one day, Millie spots Selena, and the two become fast friends. Together, they discover and confront the men and the machines that are doing something extraordinary- building a modern, even futuristic, theme park - while also doing something destructive...