The truth lies in the past in Silo S3 trailer

'Silo' Season 3 Trailer Teases More Flashbacks and, Finally, Some Answers

Apple TV releases Silo season three trailer on July 3, focusing on flashbacks exploring a radiological weapon attack and the origins of the underground silo. The new season addresses lingering questions from seasons one and two about the world outside and the events that led to humanity's confinement.