When a little cat named Jack, crosses the Rainbow Bridge, he is met by Colby, his dog brother. Colby shows Jack around and introduces Jack to lots of new animal friends. Jack and Colby have lots of wonderful adventures On the Other Side of the Rainbow Bridge, while they are waiting to be reunited with their people from their earthly life. There are suggested activities at the end, offering fun ways to remember our beloved pets after they cross over the Rainbow Bridge.