Just a couple of days before the release of Silo Season 3 Episode 10, Apple TV has dropped the trailer, giving fans a look at what's going to happen in the season finale. The caption of the thirty-seven-second trailer, uploaded on Apple TV's Instagram, read:"One question holds all the answers."While the trailer leaves many questions about why the Silos were built, why people had to live inside them, and why the different Silos were never allowed to communicate with each other, it also drops another interesting reveal involving Silo 1, giving a closer look at what could be behind some of the biggest mysteries surrounding the Silos.In the clip, as seen in the trailer, a group of people can be seen coming outside, including a man who looks like the sheriff of Silo 17, with his family. The scene appears to connect to the family Juliette finds in Season 2, while also hinting at a possible connection to Silo 1.More on the story below.What does the Silo Season 3 finale trailer reveal? View this post on Instagram Instagram PostThe Silo Season 3 finale trailer shows Juliette (Rebecca Ferguson) recalling Bernard's words that everything they don't know about the Silos could be answered with one simple question. For Juliette, that question is simply "Why?" She raises questions about the Silos' existence, why people went inside them in the first place, and why there's no contact between the silos.She even questions the founders' intentions, wondering why they would add a safeguard that could kill everyone if they cared so much about the people. From Juliette's questions, it is clear that she wants to understand why the people who built the Silos never wanted them to know the main details about it.Silo Season 3 Episode 10 teases huge Silo 1 spoilersSilo @SiloSeriesLINK👁️Towards the end of the Silo Season 3 finale trailer, a particular clip shows a group of people coming out with a man in front with a green flag and green outfit. The clip also shows an unknown person seeing them from the top, a detail that seems to be hinting at a huge Silo 1 reveal.Behind the man in the Silo Season 3 finale trailer, viewers see a lady with black hair in a purple outfit and a young boy standing next to the man with a green flag. However, these are not random people but the sheriff of Silo 17 with his son and wife.In Silo Season 2, Episode 1, viewers get a look at what happened to the sheriff of Silo 17 and his family. The episode shows the people trying to get outside. However, instead of finding a safe world, they all die in the end. Later, Juliette reaches Silo 17 and comes across their bodies, along with the same flag, which can be seen in the final trailer. If we connect the dots, it seems like the new trailer is trying to bring that old story back into focus, showing the Silo 17 sheriff and his family's escape from a different angle.However, they are not the only ones shown in the clip. A dark, mysterious figure can also be seen on the right edge, seemingly watching them as they come out on the ground. Since this happened almost thirty-five years ago, there's a possibility that the person, who seems to have grey hair, could be from Silo 1, raising the possibility that the figure is watching them escape through a live drone feed, possibly one being flown by F-35 pilot Charlotte.Additionally, the tease also hints that the memory loss might work differently in Silo 1 than the other silos, as the figure watching from Silo 1 seems fully aware of events that are taking place. This leads to the speculation that the people in control could keep their memories while others in the silos have theirs wiped.Silo Season 3 finale, titled Troy, will be released on September 4 on Apple TV.Also read: The only Chad Powers Season 2 cast guide you need