Ep. 76: King's Gambit
Ipinalabas noong Oktubre 4, 2015
The Executive Council and Security finally clash together over the custody of Dennis. Although the Executive Council manages to seal away Security's powers, its leader, Roger, announces a new plan called "King's Gambit". On the other hand, Sora appears before Dennis, who is injured thanks to the duel. He sends Dennis back to the Fusion Dimension and let Dennis tell the Professor that he will carry out the duties. (Source: Yu-Gi-Oh! Wikia, edited)