The god-killer arrow changes everything: Seiya isn't fighting to win anymore, he's fighting to undo a prophecy that says his goddess dies no matter what he does. Sanctuary becomes a gauntlet where every Gold Knight represents a reason to quit, and he walks through anyway. This is Saint Seiya remembering what made it matter in the first place, one kid refusing to accept that fate is written.

Seiya is an orphan destined to become the Pegasus Knight, one of the young warriors sworn to protect the goddess Athena. Athena has been reborn under a grim prophecy: she will lose the war against Poseidon and Hades and bring ruin to mankind. Seiya refuses to accept that fate and vows to protect her no matter the cost. Then a god-killer arrow strikes her heart. To save her, Seiya must climb Sanctuary and defeat twelve legendary Gold Knights, all within twelve hours. The second season of this action fantasy adventure, based on Masami Kurumada's manga, is a race against the clock that leaves open whether success could change the prophecy.