Datli (Amitabh Bachchan) is 102 years old, but whether in thought or behavior, he seems to be a young man in his twenties, full of energy. Compared with Datli, his son Babu (Rishi Kapoor) is more like a real old man, who is listless every day, and the identities of the father and son seem to have been reversed. One day, Dalit announced a decision that shocked Babu. He actually wanted to send Babu to a nursing home. In order to avoid such a tragic fate, Babu promised to make a series of changes and promised that he would rekindle his enthusiasm for life. In the process of change, various collisions and frictions occurred between Babu and Dalit, but the relationship between the father and son was also heating up in the quarrels.