Rio and Dana follow her ferret, Chip, to a casino where the mysterious Joker is holding Howard captive. She challenges Rio to a game of blackjack in order for her to escape her Roll Ruler, which forces them into a draw at every play. As Rio realizes her compassionate ways made her ignorant of Rina's true feelings, she ends up losing a hand. However, after Mint and Jack arrive, Rio manages to win a hand, to which Joker presents with a Gate and frees her from her Roll Ruler, deeming her worthy of challenging Rina again. Meanwhile, Rina becomes curious of Cartia's motives for getting all the Gates...