The episode starts with Parker mentioning the Maine Cup Tournament.
The moustached man, Shaul is eyeing the Liepard's eye, that the woman, Ripple is putting in a case with her other jewels.
Meanwhile, a Purrloin is watching Ash and co.
Iris is facing a Vanillite with her Axew.
Cilan and Ash are watching and Cilan spots a Purrloin walking on the deck and is irked.
Vanillite uses Double Team and Axew use Dragon Rage.
Vanillite freezes Axew, so Iris loses.
Pikchu beats an Eelektross and Vanillite beats and Amoonguss.
Purrloin does something in Ripple's room I think.
Ash faces the guy with Vanillite and the guy uses a Galvantula against Ash's Pikachu.
The power goes out and then Watchog is put to sleep after the lights went out from Roselia's SleepingPowder.
Shaul owns Roselia.
Ripple finds the Liepard's eye stolen and Shaul is in the room like he is surprised too.
Pikachu beats Galvantula with an Iron Tail and Ash wins.
Purrloin runs on the field and sniffs something out.
She jumps on the runner up's face and is pulled off by Ash and then she lands on Cilan, who lets out a loud scream.
Ripple is lying in bed with Purrloin and Iris sense Cilan is going to do something and yep, it's Detective time.
Shaul gives a statement to the captain the captain shows Shaul on some Ipad screen, a video of Shaul near the jewels.
Cilan puts together a theory and Ash is happy, until Ash and Iris are disappointed and Cilan is embarrassed.
Cilan sees Purrloin next to him and he freaks out.
The Runner up guy refuses to speak to Ash and co., before Iris remembers that Purrloin tried to attack him earlier.
Cilan uses a magnifying glass on the ground and finds some evidence, probably a footprint.
Cilan brings the people involved to the deck/battlefield and talks to them.
Cilan gives a theory, sating that Vanillite did it.
Cilan says that the runner up guy did it and Purrloin is angry.
The guy laughs and sends out Vanillite, showing that Cilan is right.
The guy with green hair and glasses orders Growlithe to attack the guy and the guy and Vanillite get thrown agains a wall and his disguise falls off.
The green haired guy takes off his disguise and reveals that he is with the international Police I think.
Shaul hugs Ash, I think.
Ripple then hugs Purrloin and Cilan says something at the end to surprise Ash and Iris.
The end.