Sylvio ging als Verlierer aus dem Duell gegen Yugo hervor und wurde auf direkten Weg in die unterirdischen Arbeitslager geschickt. In diesen unterirdischen Müllanlagen verhandelt Gong mit dem Besitzer der Untergrund Duell-Arena, Lucas Swank. Lucas klärt Gong, Sylvio und Moon Shadow über die Regeln der unterirdischen Duell-Arena auf und erklärt wie eine Rückkehr an die Oberfläche möglich ist.
Silvio lost his Duel, and was subsequently sent to the underground. In that place, Gong was arguing with the owner of the Underground Dueling Arena, Gallager. Gallager tells Gong, Silvio and Tsukikage about the rules of the underground facility, and how to get back to the surface. On the other hand, Tsukikage, whom managed to escape from the facility, speaks to Yuya about Declan and Reira's desires
This episode is the 777 in the Yu-GI-Oh! franchise and feautures a special opening.
Nella raffineria di rifiuti Sawatari incontra Gallagher, che gli racconta di Sergey, un guerriero dall'oscuro passato che lavora per Roget. Riley da queste informazioni arriva a capire qualcosa.
