The Fallout TV show is still in production, but we've heard very little about it through official channels. We know it's being made by Amazon and has a cast including Walton Goggins and Kyle MacLachlan, although that doesn't tell us a lot about the direction the series is taking.
What has been much more illuminating, however, are the various behind-the-scenes leaks during filming. As soon as the cameras started rolling, set photos began circulating online, giving us a peak at the post-apocalyptic streets of America and iconic Fallout iconography, like Vaults and Ghouls. Now, we have another idea of where the show will take us, with the latest leak revealing what appears to be Vault-Tec's HQ.
This is a pretty big reveal, as the only time we've been to Vault-Tec's HQ was way back in Fallout 3. Despite the company being so integral to the lore (every player character bar the Courier owes their continued existence to the Vaults), Vault-Tec has been more of a looming presence in the games, long wiped out by the time the story kicks off. For this reason, there hasn't been much of a reason to track the company down, unless you're plundering one of the Vaults, as Wastelanders often do.
Of course, there's no guarantee that this is Vault-Tec's HQ, but it's hard to imagine what else it could be. The logo on the pavement is unmistakable, and the surrounding area looks much more like a corporate plaza than the entrance to a Vault.
With this in mind, it seems like the plot will focus on Vault-Tec's various activities quite heavily. One of the few official reveals from Amazon was an image from Vault 33, so it seems like our hero will start their story there, as so many protagonists have before them. One of the first set leaks also gave us a look at a Vault - more specifically, Vault 32. Like Vault 33, this location has never appeared in the games before, and there's no in-game lore to shed some light on the nature of the Vault. We'll have to wait and see if it ends up being one of those Vaults housing some kind of sick social experiment.
It remains to be seen when Amazon gives us an actual look at the show. We can assume that there's no filming going on right now since writers and actors are on strike. It's not clear how far the series got into production before this.