A simple American boy, Samuel Johnson, Jr., joined the Boy Scouts and was lost during a hike. But he is the president's son, so he can not disappear just like that and has to find a way out. Sam sank into the ground and got to the opposite side of the world – in the jungle. The terrible news were waiting for him there – our planet is in danger because of the fact that people no longer take care of the Earth, and only he can save it. And a fearless warrior Narva with her brother will help him in this difficult task. Friends will have unusual adventures and an almost impossible task – to save the Earth when the whole world is against you.