One man, a brave paratrooper, has a problem with a sore tooth, but is afraid to go to the dentist. He is brought to him by his several-year-old son. In the office, apart from the dentist, a plush toy awaits him - "Checkered dog", which the man remembers from his childhood. The doctor, by playing films with the participation of a dog on a VCR, means that the man, absorbed in watching his favorite childhood hero, does not pay attention to the run-offs and thus can extract the aching tooth.