As Tarzan swings through the jungle, he feels a bit adventurous and decides to venture into the unknown forest. He clutches vine after vine, as he flies past gorilla, cheetah, elephant, and macaw. As he gets farther and farther away from his home, the familiar sounds begin to fade, and a dull silence overtakes him. At last, he reaches the dark canopy of trees, where nobody has gone beyond, and he begins to hear some tribal music! He cautiously peers through the vines and leaves, and sees small round puffballs bouncing around on drums, mushrooms, and more; making a new kind of music. He sees the Thumpies!