After winning the Freeze Badge from Brycen, Ash and co. head to the location of the final Gym in Unova, Opelucid City. When Ash and co. are about to leave the Pokemon Center behind, Nurse Joy stopped them and gave Ash the bad news is that the Gym there is closed so he'll have to go somewhere else. Just then Ash and co. are abducted by a butler who asks for Cilan a favor: to find the right partner Pokémon for Mr. Hattori's cute little daughter Marigold (emphasis on cute and little). Before they arrive to Mr. Hattori's place, they've met Burgundy again right outside the gate entrance and explaining that Mr. Hattori only allows an A-Class Connoisseur to enter since Cilan was only A-Class and he's allowed to enter but not a C-Class Connoiseuse like Burgundy anyway for tough luck like herself. Cilan's was but one opinion, the other is to another A-Class Connoiseur named Ricard Nouveau, who has a Pokémon Cilan dreads most: A Purrloin. Which opinion of these two is more correct, and will Cilan get over whatever happened between him and Purrloin? Yes. And with the Opelucid Gym closed, where will Ash go for his final badge? The final gym that Mr. Hattori's butler recommends him to go is Virbank City which is further down the canal.
The title of the episode is a parody of the 1981 film of "Clash of the Titans"
This marks the second time Cilan was still have his fear of a Purrloin. First was BW046: Purrloin: Sweet or Sneaky? when they encounter a Purrloin once that belongs to a trainer name Misha while traveling to Nimbasa City with their new traveling companion Meowth.
This is the second time an image picture of another pokemon appears on the Pokedex. First was BW067: Battling the Bully! when Ash looked up Scolipede and Seismitoad on the Pokedex.
Who's that Pokémon? Purrloin (Japan) Whimsicott (US)
Cilan narrates the preview of this episode (Japan)
After Burgundy was hit by Crustle's Rock Wrecker, she did the "blasting off gag" that Team Rocket used to do.