Both "Black Sails" and "The Terror" nail the sense of desperation and survival against impossible odds. "Black Sails" masterfully weaves its pirate lore and moral ambiguity, but "The Terror" lets the horror of nature collide with human fragility in such haunting ways. If we're talking about raw emotional impact and character depth while facing relentless adversity, "The Terror" edges out for me. The way it captures fear and isolation is just chilling.