It's Earth Day, a great time for everyone to learn how to help take car of our world, but Ben is wasting paper while BJ isn't too concerned about cutting down a tree to make room for a new playground. After a trip to the rainforest and a meeting with Mother Nature, everyone learns the importance of taking care of our world. As Earth Day comes to an end, Barney reminds us all that taking good care of our Earth is the natural thing to do...for the people we love.