The Rejected Father's Fortune

A rural elderly father travels to the city to join his son's family. The old man is deeply disliked by his son and daughter-in-law, who treat him with cold neglect and eventually drive him out of the house. The old man rescued a high-profile figure, and the party has offered a large cash reward. When the reward notice reaches the son's community, the couple suddenly realizes the old man they despised and expelled is the savior the city is looking for.