The first season of Silo ended on a truly great cliffhanger. The Apple TV Plus series, an adaptation of Hugh Howey’s trilogy of postapocalyptic novels, tells the story of the remnants of humanity, who live deep underground in silos designed to protect them from a poisoned planet. Season 1 had the feeling of a small-town mystery, as mechanic-turned-sheriff Juliette (Rebecca Ferguson) stumbled upon a secret that completely upended her worldview. Her quest to uncover that mystery...