Based on Hugh Howey's best-selling novels, the series stars Rebecca Ferguson as an engineer on a mission to uncover the truth about her underground silo.

That question looms large as Silo kicks off its second season. The first season ended with sheriff Juliette Nichols (Rebecca Ferguson) leaving

Following the first season of Silo -- the Apple TV Plus series starring Rebecca Ferguson as an inhabitant of a mysterious subterranean abode -- a second installment is giving viewers a chance to unearth more answers.

One of Apple TV+’s most popular series returns for a second season. In a bleak, barren future where the Earth’s surface is desolate and uninhabitable, humanity is still finding a way to survive. That’s the backdrop of “Silo,