Mark of the Monkey (1) - S1.E47

The Dark Signers show up to taunt the Signers following Yusei’s duel with Roman. Devack introduces himself and reveals he is in possession of Ancient Fairy Dragon and challenges Luna to come get it. Roman announces that their duels will take place at the four stars of destiny. Whilst chasing after them, Jack discovers that one of the Dark Signers is Carly, who tells him to find her if he wants to know what happened.