Concerned that there is trash floating in the swamp near her home, Henrietta Hippo sets out to visit her friends throughout the Earth. Upon meeting up with Leon Lion, Jarrod Giraffe, Petey Pig and Constance Cow, Henrietta discovers that the Earth is being mistreated in many ways. Determined to change the future of our planet, Henrietta and her friends create the Terrateer Club, " Good Friends to the Earth." Their mission is to teach all those willing to learn to care for the Earth. Will you become a Terrateer?