A Web of Deceit (2) - S1.E28

Despite the difficulties caused by the Dark Synchro Monster, Yusei manages to win his duel against the Dark Signer. However, after the duel, his opponent has no recollection of what happened and no longer has the birthmark or any Dark Synchro Monsters in his deck. It is revealed that spiders are being used to control people, one of which are heading to the hospital where Jack is recovering. Trudge arrives to take Yusei back to the Satellite, and Yusei decides to go, with intention of getting the truth out of Goodwin.