1x28 - The Seven Deadly Sins: Four Knights of the Apocalypse

After taking Guinevere to Camelot, Eloncid returns to his home. There, he is welcomed by a certain family, and shows a different side to his usual cold-hearted self. Meanwhile, Percival and his friends are on their way to the walled city of Walnack, but Arthur, who has used Guinevere's magic, finds out about their movements.