The Dog Detectives find themselves cycling around America Imogen the opossum is lost! It's up to the Dog Detectives to find out which part of America she comes from and get her home. But Detective Jack is adamant that he knows the way so they end up taking a bit of a detour! They see the snow of Alaska, the deserts of Nevada, and the the swamps of Louisiana. Eventually Deputy Poco Loco takes command and soon they are back in New York--Imogen's home! Includes a spread of American facts at the back of the book.