The Son of Olympus ReturnsEpisode 18

Eight-year-old Kael drinks the Water of Exile to save his Goddess mother Athena from a plague, losing his memory and becoming mortal. Twelve years later, as a workshop apprentice, he creates a cure—but his fiancée Ella steals the credit, humiliates him, and abandons him for a nobleman. Athena, who has searched for her son for years, finds and recognizes him. Kael regains his memories and discovers his father is a dragon king.