The file likely refers to the Italian-dubbed version of Pokémon Journeys: The Series episode 123, titled " Pronti Per-Champion Time! " (Ready for Champion Time!) in Italy.
Cynthia dominates the early match using strategic moves like and Dream Eater with her Spiritomb. Ash's Dragonite and Gengar are defeated early.
If you are watching the newest series, this episode features a shift in tone toward a "zombie-like" mystery.
The second semifinal of the Masters Eight Tournament begins.
Depending on which series or season numbering you are following, here are the details for the most likely episodes:
The episode ends on a cliffhanger with Cynthia holding the lead.