Dean (Forte) and John (Arnett) decide to grant their father's (Majors) last wish before he slipped into a coma: a grandchild. Unfortunately, they were raised in the Arctic, have no social skills, and are, well, idiots. Along comes surrogate Janine (Wiig), who is willing to bear the child for a price. Mostly, though, it's just a set up for an endless series of gags based on how stupid and out of touch the brothers are. Arnett and Forte's "even dumber than dumberer" act, as directed by Odenkirk, is exhausting and the occasional splashes of sweetness don't make up for what is basically a one-joke extended sketch comedy skit.