Ep 5. Back to the Pilot

In the season 10 episode 5 of Family Guy, titled "Back to the Pilot," Brian and Stewie accidentally travel back in time to the pilot episode of the show. They find themselves in the year 1999 and must find a way to get back to the present while also trying to prevent 9/11 from happening.

The episode starts with Brian and Stewie arguing about whether or not they should watch TV or go on one of Stewie's adventures. When they finally decide to do something productive, they head to the basement to use Stewie's time machine.

However, things don't go as planned. While they successfully travel back in time, they accidentally land on top of a younger Brian and Stewie and end up killing them. After realizing what they have done, they decide to take their place in the timeline to prevent any damage.

As they explore the past, they realize that they have the opportunity to change history. They decide to take action by warning their past selves of future events, such as the Boston Marathon bombing and even 9/11. In doing so, they create a series of alternate futures each time they make a change.

One of the most memorable moments in the episode is when they encounter the old, awkward animation style from the early episodes. This plays a significant role in the plot, as they use it to their advantage toward the end of the episode.

Overall, "Back to the Pilot" is a unique episode that breaks the fourth wall and pokes fun at Family Guy itself. It's a hilarious adventure that keeps viewers engaged and entertained from start to finish.