Mr. Burns discover that he has a long lost son, Larry Burns. Mr. Burns accepts Larry as his son, but soon he loses respect for him when he finds out he is a oaf. So Homer and Larry devise a plan to fake kidnap Larry in Homer's basement, to see if Mr. Burns really cares about Larry.
The police track them down and the devised plan isn't a success. Mr. Burns decides he cannot love his son and he must go. Larry leaves Springfield for ever.