The following contains spoilers for the "Silo" season 2 finale, "Into the Fire."

Apple TV+ is home to many of the best sci-fi shows currently on the airwaves. Whether it's the alternate history glee of "For All Mankind" or the joy of watching Lee Pace as an immortal emperor fighting a bunch of assassins while completely naked in the epic "Foundation" or the (relatively) more grounded "Severance," there's something for every kind of sci-fi fan on Apple TV+.

Now, one of the streamer's best sci-fi shows has finished its second season — "Silo." Created by Graham Yost and based on the book series of the same name by Hugh Howey, "Silo" takes place in a dystopian future where the remnants of humanity live inside a giant underground silo hundreds of stories tall. Narratively, the show centers on Juliette Nichols (Rebecca Ferguson), an engineer who becomes engulfed in a huge conspiracy as she...