Avery and Evan beg to "see real sharks!" maybe even discover a megalodon (giant prehistoric shark!) tooth. But something's wrong at the shark reef and the mystery needs to be solved!.
Join Christina, Grant, Mimi, Papa and their new friends in the Land Down Under! As soon as they arrive, a famous marine biologist with a mystery of his own asks for Mimi's help to solve it. Grant volunteers to solve the mystery and the wild ride begins!.
