Lin Jianguo, an elderly member of the Lin family, unexpectedly receives shares worth a staggering 50 million yuan as a reward for helping someone in their hour of need years ago. To test the true feelings of his children and grandchildren, he conceals his newfound wealth and falsely claims that his wife urgently needs 50,000 yuan for surgery. Faced with this life-saving expense, his two biological grandsons, whom he raised and supported, make every excuse to avoid helping, while obsessively calculating their inheritance. In contrast, his grandson from his daughter's side, Chen An, sells his wedding car and desperately takes on odd jobs to raise the medical expenses, risking everything to protect the elderly couple. When the biological grandsons learn about the unexpected fortune, they put on an elaborate act to fight for the inheritance, resorting to forged medical records and spreading rumors without restraint. In court, every truth is finally brought to light, and in the face of money, genuine filial devotion is put on trial.