It tells about the development of information and information in a big city, among which there are 5 children who like to work by hand, namely Jiefei, Tingting, Lele, Huan Huan, Lulu. Five children participated in the model airplane competition in the Children's Palace, and invented a small robot, which was loved by other children, but failed in the competition. After the game, there was a dispute among the five children. As the captain, Lele threw away the robot they invented. Unexpectedly, miraculous things began to happen. The little robot turned into a real robot and became good friends with 5 children. It turns out that the robot is an alien computer. As long as it can bring laughter to the children, the robot can gain a lot of energy. Only with enough energy can the robot return to its hometown and return to the story of living on the alien planet. The protagonist, Lele, is a kid who likes to eat desserts. He is very keen on science, but his academic performance is not very good. Tingting is kind and lovely. Lu Lu is thoughtful, has good grades, and is naive in his personal thoughts. Jeff has a reckless personality. Huanhuan has a knife-mouthed bean curd heart and a kind heart