Peter and his friends gather at a secret base to do homework on ‘Making work with recycling materials’. Peter and Charles are disappointed because they don’t have enough recycling materials. Then, Johnny comes with lots of snacks and drinks in front of them. The kids eat the cookies and complete the robot with the remaining cookie boxes. But Johnny drinks the rotten milk. Suddenly he says that he has a stomachache and falls down. A few days later, Peter and Charles come to visit Johnny. Amber tells them how to prevent stomachaches. Johnny is happy to know that the robots they created have made the first place.