Since Silo is based on a trilogy of books, you might assume the Apple TV Plus show would run for three seasons. That theory, however, has already been tested, thanks to season 1 only covering about half of Hugh Howey's novel Wool, which kicks off the series.
Showrunner Graham Yost is very wary of the hit sci-fi drama outstaying its welcome, though, and has assured fans that he and the creative team won't "drag it on too long."
