The Land Before Time Episode 23 - March of the Sand Creepers Episode Title:March of the Sand Creepers.Episode Description:One morning, a herd of "Sand Creepers" (crabs) mysteriously come to the Great Valley. Curious, Littlefoot, Cera, Petrie, Chomper, and Ruby set off to an adventure to find out why the Sand Creepers have come to the Great Valley. They meet Scuttle, a Sand Creeper who can speak the language of leaf-eaters, and try to enlist his help, but Scuttle tries to take advantage of them to the chagrin of Cera.