Mouse calls her friend Elephant to see if he can play. But he doesn't feel at all well. He may have a cold or EVEN . . . the dreaded ZOO FLU! So Mouse calls their friend Giraffe to tell her about Elephant. Giraffe calls another friend who calls another. But something is wrong with the phones and it's hard to hear what is said. So what each of his friends hears about him just gets wackier and wackier . . . and maybe . . . just maybe, it isn't the ZOO FLU after all!