"Screw", a Russian children's cartoon, mainly talks about: in an ordinary human apartment, there is not only a human family, but also another species, that is, the screw family, which can be transformed into screws and live in the most common electrical appliances at home. They repair all kinds of electrical appliances.

In this human family, only their child Jim knows about the existence of the screw race, because whenever Jim encounters some common technical problems, the small screw family will appear, and they will not only help Jim deal with all kinds of scientific and technological problems he encounters.

He also taught him the basic principles of various household appliances and living equipment, common sense of life and the truth of being a man, such as how the TV remote control works and why the alarm clock can automatically ring. How the DVD recorder records the influence and so on. Of course, not only the little boy, but also his pet, a Chihuahua knew about the existence of small screws, so many humorous stories happened.