In a world where machines are rampant, robots, robot pets, even fire tethers, and mailboxes are "active". They are like human beings who are struggling for livelihood and money. Rodneywas "born" in such a world. He was assembled from parts by robot parents who spent 12 hours. Although they are not rich, they live a happy life. As he grows up, Rodney's dream of becoming an inventor becomes stronger and stronger. He hopes that one day he can succeed and make his and his family's lives better. Therefore, he decided to go to the "Robot City" to visit his idol, Big Weld. Dawel is the president of a large company. His immortal performance and unwavering morale have deeply affected Rodney. Dawel especially welcomes those robots that can have unconventional ideas. The slogan he advocates is: Whether you are made of gold or not, you can shine. So Rodney decided to try his luck with him and see if his copper head full of strange ideas can come in handy.
But when Rodney arrived at Robot City and was about to show off his invention, Da Wean had already left, replaced by the ambitious. Zawtooth is a selfish guy who only knows how to make money. Coupled with his mother's constant pressure on him, Zawtooth decides that the company will no longer provide accessories to those old robots in the future. They use the production of new types of robots and make huge profits from them by allowing them to continuously upgrade themselves. And, the company's slogan was changed to: When you can become new, why do you keep the way you are now. So Rodney and his friends decided to get Big Weld back and restore the safe and quiet society before, so that the old robots that have been eliminated will be protected from poisonous hands.
