 Bart later refuses to eat one piece of broccoli at dinner, so Homer decides to sit at the table until Bart eats his broccoli, even though they both miss out on important things (Homer's fantasy football draft and Bart being able to watch as Martin Prince beating up Nelson Muntz).To end the impasse, Lisa makes two identical smoothies where one contains broccoli and the other doesn't, so that Bart can drink it and Homer can feel that Bart did something well.But Bart deliberately spills the smoothies, and his fighting with a newly enraged Homer leads Marge to send them both to a "Relation Ship" with Captain Bowditch (Nick Offerman), where they can solve their relationship problems.