Sad that he didn't introduce his family to Jake when they were right outside his house but I guess it's best. Jake would probably think 'oh…cool'. I can't imagine he's a grandfather. Oh,Jake.

This episode restored my faith in Adventure Time because glob knows since sad face (which was difficult to even get through), I was never really excited for the next episodes so this was a nice surprise. It might be a filler but this is definitely the kind of episode that made Adventure Time one of my top shows.