While “The Last of Us” fans are having a field day on social media mocking the “10 miles west of Boston” scene, it’s all in good fun considering what a masterpiece the rest of Episode 3 turned out to be. While Bill and Frank show up in the video game, the HBO series greatly expanded on their story.

“It seemed like such a rich and yet unseen story,” showrunner Craig Mazin told Variety about the decision to devote an entire episode to fleshing out these supporting characters. “It afforded us a chance to look at how time passed, but also to ask a question about what happens if you’re safe. I was just fascinated by the idea of Bill, as somebody who had created a place of safety, and then here comes Frank crashing in. From there, it just went differently in my head than what was there in the game.”