The zoo isn't what it used to be. It's run down, and Hippo hardly ever
gets any visitors. So he decides to set off for the outside with his
friend Red Panda. To make it in the human world, Hippo will have to
become a Hippopotamister: he'll have to act like a human, get a job, and
wear a hat as a disguise. He's a good employee, whether he's a
construction worker, a hair stylist, or a sous chef. But what he really
needs is a job where he can be himself.