When Langley Falls implements a ban on trans fats, Stan finds himself legally separated from his favorite foods. He sets a poor example for the rest of the family when he blatantly disregards the law by crossing county lines and using Steve as a trans-fatty food mule to satisfy his own gluttonous desires.

Steve signs Stan up for a father-son bike tournament, but the plan veers off-track when Stan admits that his father never taught him how to ride a bike. Determined to make things better, Steve helps reconcile Stan with his convict father. Meanwhile, Hayley needs internship credit for school, so Roger hires her to bartend at his makeshift bar in the attic.