Confident of victory, Stannis Baratheon's fleet and army arrive at King's Landing and the battle for the city begins. The Lannisters are badly outnumbered but Tyrion has make sensible preparations and strikes a blow. When no one else will lead the troops beyond the city wall, Tyrion decides he will do so himself. Cersei plans for her and her children's future. It appears they are all headed for certain death but help suddenly arrives.