"Brian & Stewie" is the 17th episode of the eighth season of the American animated television series Family Guy, and 150th episode of the series overall. It aired on Fox in the United States on May 2, 2010. The episode features anthropomorphic dog Brian and baby Stewie after they are accidentally trapped inside a bank vault over a weekend. The two are ultimately forced to reveal their true feelings about each other, and eventually go on to question each other's existence and purpose in life.