SIlo might only be halfway through its planned four-season run, but those 20 episodes have already established its sterling reputation as an outstanding series. Showrunner Graham Yost‘s adaptation of the Wool, Shift, and Dust novel trio by Hugh Howey is one of Apple TV+’s twistiest, most compelling and preeminent offerings in a streaming slate that doesn’t lack for groundbreaking, cerebral, and crowd-pleasing sci-fi (did someone say Severance?).