Expiation of the Immortal
Saga tells Shura and Camus to continue, as he'll take care of Gemini. Saga recognizes the opponent as his brother. Source: crunchyroll
Aired 28/03/2003EP 4 - Expiation of the Immortal
2002
Saint Seiya: The Hades Chapter - Sanctuary
Hades is planning to take over the world, to achieve that goal, he sends out deceased Gold Saints to take Athena's head. Seiya and the other Bronze Saints come to help but their help isn't appreciated by the remaining Gold Saints that are still alive.
(Source: Anime News Network)