Eric and Donna get caught having sex in their car by a cop.

Lois suspects Stewie is the one creating all the pee stains around the house, so she decides to potty-train him. When an incident in the supermarket reveals that Brian is the one responsible, he goes to see a therapist. Brian finds out that his love of Lois is causing his accidents, so he decides to confront her.

Tonight, actor Kevin Pollak.

The firehouse discovers Patricia working at a gym and suspects that her pregnancy is fake. The lawyer and Nicolás present the process for the embargo.