Rafe Khatchadorian is horrified that because of a missed science assignment he has to go to summer school; but instead of three weeks in a school room, he finds himself as a volunteer at BushyTail animal refuge, which is really hard, smelly work--and somehow he needs to use the experience (and the help of a girl he meets there) to produce a first-class science report.

When Ivan, a gorilla who has lived for years in a down-and-out circus-themed mall, meets Ruby, a baby elephant that has been added to the mall, he decides that he must find her a better life.