Bae Dae-gil, the chairman of a leather company, wants his son, Ban Seok, to inherit and continue the company. However, Ban Seok repeatedly refuses to inherit it and establishes a company called 'Ban Tube'. Bae Dae-gil, with the help of his associates and Na Dae-gon, attempts to ruin Ban Seok's company through various schemes and tricks. In response, Ban Seok, the employees of Ban Tube Inc., and the company's mascot dog and cat, Laotte and Chunja, begin to fight back.