Cory is excited, the zoo is getting a new animal today. A baby Billy Goat. Cory and his new friend Billy set out on an exciting adventure through the San Antonio Zoo in search of Mikey's Missing Yo-Yo! They run into many different characters along the way, some trying to help, others not so much. As they try to keep away from the evil zookeeper Jannette, they must search wide and far for the yo-yo. Includes many great characters, a rappin rabbit and racoon, named cheeks and tah, a chipmonk afraid of heights. Join along in how it all began with the Adventures of the Spider Monkey and Billy Goat: Mikey's Missing Yo-yo!!!