Ep 11. The Former Life of Brian

In season 6 episode 11 of Family Guy, titled "The Former Life of Brian," Brian the dog starts to question his purpose and overall dissatisfaction with his life. Feeling unfulfilled and tired of his current routine, Brian decides to track down his ex-girlfriend Tracy who he believes is the one that got away and the reason for his current unhappiness. As he reconnects with Tracy, Brian realizes that the grass isn't always greener and sometimes, the past should stay in the past.

Meanwhile, Peter Griffin and his neighbor Glenn Quagmire become obsessed with an old cheesy action movie, Gator. They spend every moment quoting the film's famous catchphrases and reenacting famous scenes in the hopes of becoming part of the Gator fan club.

As the episode progresses, Brian's relationship with Tracy begins to heat up once again, but he quickly discovers that he's no longer the same dog that he was when they were together. Tracy has moved on with her life and Brian realizes that he needs to do the same. In the end, Brian comes to the realization that his purpose in life is to be with his family and the ones who love him unconditionally.

Overall, "The Former Life of Brian" is a touching and relatable episode that explores the notion of nostalgia and the importance of being grateful for what we have in the present. The episode also showcases the hilarious antics of Peter and Quagmire, providing a comedic balance to the more serious storyline of Brian's search for his purpose in life.