After solving a global problem, Chen Jianguo delayed returning home. His wife Jiang Mingzhu was diagnosed with lung cancer, needing costly treatment. Their younger son sought help from the eldest brother, but his sister-in-law Xu Wanrou exploited the crisis—offering only 50,000 yuan in exchange for forcing Jiang Mingzhu to sign a family severance agreement. Later, Xu and her father, aiming to seize the 30 million yuan land compensation for the old house, led a violent attack on the family.