Great Father's day episode for a mid season return. The entire plot with Peter and his friends trying their best to reunite Mayor West with his father was interesting building some unity between their strained relationship. It's definitely worth watching. 9.6/10. Season 21 is one of the better recent seasons. Some of the episodes capture elements of both old and new versions of the show. The characters are starting to get better, fast paced storylines and showing depth to their original and current personalities. I'm hoping the rest of the season reinvent the show's quality again. It'll take time though.