As one of the youngest Muppets on Sesame Street, Elmo is constantly getting left behind. Being slower and smaller than everyone else is no fun at all. But when Grover tells him he's too little to go biking riding with their friends, Elmo ends up doing something even better! Grover's grandpa takes him out for a delightful day at the zoo and this time, Grover finds out what it's like to be left out. Kids everywhere will be able to relate to Elmo in this simple Sesame Street story.