Shuaihu, a fierce dog eliminated by a breeding kennel, falls into the hands of Liu the Scarface, a dog dealer, and is about to be slaughtered for meat. At a livestock market, Shuaihu fights desperately to escape and defeats Liu's two hunting dogs. He then enters the mountains, encounters Qin Chuan, and subdues a giant wild boar, prompting Qin Chuan to take him home. Thanks to his exceptional intelligence, Shuaihu gradually becomes part of Qin Chuan's little courtyard. The man and the dog depend on each other and become family.