Retired veteran craftsman Liu Zhenguo receives a twenty-million reward, and goes to the city to test his two sons. Biological son Liu Ming refuses to lend life-saving money on the grounds of poverty and drives his parents out of the house; adoptive son Liu Liang gives everything and cares for them meticulously. Liu Zhenguo gifts the huge sum to his adoptive son and notarizes it legally. Facing the rumors, framing, and workplace oppression from his biological son and his wife, he sticks to the right path, defends his rights legally, and the truth finally comes to light.