The Human Planet (Unreleased)

In their new adventure, Andy and Sandy go exploring together with...Grandpa! And not only do they investigate, but they also cure him from an odd ailment.
And besides that, the children assemble the skeletal and muscular systems, and learn the functions of the heart, lungs, stomach and other vital organs. Of course, they make this new journey on the good old Nautilus, which has again been modified by their brilliant dad!