Ryen, a farmer's adopted son on the northern frontier, grows up as a despised servant in Baron Victor's household. During a knight selection, he awakens the power of thunder and learns that he is Zeus's abandoned son. Secretly guided by the messenger Hermes, Ryen enters the Thunder Academy and rises from a squire trampled in the mud to a warrior who defeats Drake and every noble knight who mocked him. Mastering his divine blood, he eventually claims a place on Olympus and completes his transformation from outcast to legend.