Rules for survival in troubled times: have a strong fist, a sharp mind, and an unbroken spirit! Li Ergou was defrauded of all his belongings, and after being humiliated, he broke into the city, accidentally rescued the second concubine of the Hu family, and then took root in a wealthy family as a nursing home. Do the most tiring work, eat the most delicious food, practice the strongest Kung Fu, beat up the arrogant evil slave, and break the insidious rumors! In the deep house, the thoughts of the female relatives revolved around him; on the battlefield, he led the people in the compound to store food and deliver messages to fight guerrillas. From a hungry and envious poor boy, to a loyal backbone, to a passionate tough guy who protects his family and country, Li Ergou proves with his strength that grassroots can also overturn the chess game in troubled times!