Great Bomb in Death Queen Island!

Although Seiya is still recovering from his injuries, when he discovers that Ikki has gone to Death Queen Island(DQI) in order to battle Jango, who as ruler of DQI, aims to rule the world from the shadows, Seiya insists on going to help Ikki. The bronze saints defeat the devil saints, Phoenix Ikki defeats the black Phoenix and Jango. But once Jango is defeated, Arles casts a spell that initiates earthquakes and volcanoes on DQI and begins to destroy the island with the bronze saints still on it. But Saori uses her Athena powers to save them from harm. Source: crunchyroll