The Happos Family
When the last car races out of the safari park and the gates are shut to all visitors, the Happos jump up out of the mud, wake up from their snoozing and get dressed up. Now it's their time for crazy, zany, Happo adventures.

A large safe tumbles out of the sky and lands inside the enclosure. Super Hippo needs to use all his super powers to find out what is inside.