Complex sentence: In the Riverlands, Sandor "The Hound" Clegane is revealed to have survived his wounds and assists a peaceful community in building a sept. After the villagers are slaughtered by outlaws affiliated with the Brotherhood Without Banners, the Hound pursues the Brotherhood.
Split into simpler sentences: In the Riverlands, Sandor "The Hound" Clegane is revealed to have survived his wounds. After his village is wiped out by outlaws affiliated with the Brotherhood Without Banners, the Hound pursues the Brotherhood.