本片是一部Animation片，由John Hubley导演，由Jack Warden/Ray Hubley/Maureen Stapleton主演。
剧情简介：A boy and his dog take a wondrous trip under the earth's crust and through the geological eras of time, introducing children to geology in the form of a musical fantasy.
类型：Animation
导演：John Hubley
演员：Jack Warden / Ray Hubley / Maureen Stapleton / Morris Carnovsky / Phil Leeds / Harry Edison / Don Elliott / Ruth Price
