After they find out that Nathan's allergic, the whole family goes on a gluten free diet, which leads to a weird competition between Will and Theresa to see who can keep the diet up longer, and for Brenda, who's trying to convince health-conscious Grant she can live without it. Problem is, they're all cheating. Meanwhile, it's all fast food, all the time for Craig and Kenny as they romance two ladies who work at Big Burger.

Will hopes that adopting a baby chick for little Lucy will be a "teachable moment" about where food comes from, but things get out of hand when all of the guys decide they want to adopt chicks too; Craig dates an attractive doctor, but finds himself intimidated by her bully of a son.

The guys camp out all night at Price Best for a hot video game.