During the next morning, the WRGP finals begin with Jack facing off against Lester, who both bring out their ace monsters, Red Nova Dragon and Machine Emperor Skiel Infinity. That night, the Signers are messaged by the 3 emperors of Yliaster, who tell them about the floating metallic island, the Ark Cradle, where a God called Yliadus (Z-ONE's real name) supposedly sleeps, stating that if they win the WRGP, then Yliadus will awaken and have New Domino City destroyed, but will rebuild it the way the trio wants it to be, which is without the existence of Ener-D and Synchro Monsters. Then, Z-ONE brings Sherry into the Ark Cradle, which is already emerging into the Yu-Gi-Oh! dimension. In another dimension, Z-ONE (who has now returned to his original form) shows Sherry a vision of the future, where everything on Earth is destroyed because of a global Ener-D explosion. #6 - The Beginning of the End Season 4 - Episode 39 - Aired Oct 13, 2010 Spurred on by this attack, Yusei becomes determined to learn the Accel Synchro. When the group try to investigate Lester, they find his mansion gone, and that no one at Duel Academy remembers him. Luna's counterattack fails, but her Duel Monster spirits prevent her from being hurt, after she loses. Lester upgrades Skiel and defeats Leo, knocking him off the bridge, but the Crimson Dragon appears and saves him. Leo summons out Power Tool Dragon, and using traps and monster effects, manages to retrieve Ancient Fairy Dragon. Luna soon takes some damage in order to protect Leo from Skiel's attacks. As Yusei and company can only watch, Leo recognizes his opponent as Lester, but Lester states the recognition of his identity has already come to late for them to do anything about it. Luna summons out Ancient Fairy Dragon, but it is soon absorbed by Machine Emperor Skiel Infinity. Realizing Luna and Leo are in trouble, Yusei, Jack, Crow, and Akiza head off to find them. #3 - Dawn of the Duel Board (2) Season 3 - Episode 14 - Aired Sep 30, 2009 It becomes clear to the others that this isn't a normal card. As it uses its effect against Crow's attack, Crow notices a strange hook aim for his wheel and barely manages to avoid it.
The first round sees Crow against Hermann, who instantly summons Hidden Knight Hook.
(And, Akiza's psychic powers don't return until Episode 140, after the Ark Cradle appears.) Despite his arm not being fully healed, Crow decides to take her place in their match against Team Catastrophe. Akiza gets hit by the same phenomenon, and her psychic powers fail, as she loses it, to save her from getting injured. After studying a video Carly gave them, the Signers believe it to be linked to a monster called Hidden Knight Hook. Team 5D's are later visited by Breo, and study the memory chips of Jean and Andre's Duel Runners, revealing something had caused their wheels to suddenly lock up and crash, the same reason why Crow crashed. Team 5D's prepare to face up against Team Catastrophe, the leader of which, Nicholas, has been given a Card of Darkness by Primo. #2 - Knight Takes Pawn Season 4 - Episode 12 - Aired Apr 7, 2010